★ 5

I’m so happy I found Studioflex — it’s hands down the best gym I’ve ever joined, and I wholeheartedly recommend it to anyone looking to elevate their fitness journey! The space feels private, welcoming, and relaxed, and the trainers are absolutely amazing.
The trainers I’ve worked with — Kyle, Katie, and Keith — are exceptional. They’re friendly, knowledgeable, and genuinely invested in helping me reach my goals. Each workout is personalized to fit my needs and pushes me to grow without ever feeling discouraged. Every session is unique, using a mix of exercises and equipment that keep things fun and challenging.
In just five months, I feel so much stronger, healthier, and more energized than when I started. I actually look forward to every workout and always leave feeling invigorated — both physically and emotionally. Honestly, if I could, I’d train there every single day!
Studioflex is more than just a gym — it’s a community of passionate professionals dedicated to helping you become your strongest, healthiest self. I highly recommend giving it a try!

Source: Google

★ 5

When you're serious about one-on-one training, this is the place.

Source: Google

★ 5

I can't thank the trainers at Studio Flex enough! Because of my crazy work schedule, I have worked out with four different trainers, and each one has been amazing. I have arthritis and back issues and each trainer makes sure to structure the workout so that I not only have no pain, but I get stronger and feel that I have accomplished something. If you don't like to work out but want to get stronger and more fit, I definitely recommend going to Studio Flex.

Source: Google

★ 5

I trained here for nine months and appreciated the structure, accountability, and early morning energy. The workouts were consistently challenging and helped me get stronger and more consistent in my routine. Dorian brought his physio expertise, humor and motivation, even at 6:30 am--which is no small feat. While I've decided to move on to explore different fitness goals, I'm grateful for what I learned during my time here.

Source: Google

★ 5

I have been working with Keith for close to three months now and I've noticed a major change in my posture and overall fitness since starting. He's incredibly knowledgeable, patient, and always makes sure I'm comfortable and challenged during my sessions. The gym is well equipped and clean. I enjoy working out here and highly recommend it!

Source: Google

★ 5

I have been seeing Ryan for over a year, and he’s been a staple at keeping me healthy and strong. I came to Studio Flex hating working out… I was never a gym girly, and now I am! I’m lifting heavier and heavier and not only has my body changed, more importantly, I feel better and have way more confidence. Ryan pushes me but lets me go at my own pace too. It’s perfect. Well worth the cost.

Source: Google

★ 5

It’s going to be a year in a few months of me training with the best trainers! Katie and Kyle have been so positive and so effective. I actually enjoy working out which is something I never looked forward to. So glad to be a part of this studio!

Source: Google

★ 5

I have always been intimated by weight training and having a personal trainer. But all that was changed when I met Kyle and Katie. Since the first meeting, I have undergone transformation not just with my body but also my mind. I feel stronger and more energized. A special shout out to Katie for encouraging me to wake up early for her 6:15am appointment. Even just making to her appointment feels like a personal triumph!
The trainers are very experienced and their programs are well thought out. They are also attentive and very supportive. I am very lucky to have found this studio, thank you!

Source: Google

★ 5

I can’t say enough great things about Studio Flex! After two years of no exercise and a diagnosis of patellar tendinitis (from overdoing it trying to get back into running), I turned to Kyle and Katie for help. Their thoughtful, customized approach helped me heal and strengthen my knees while working toward my fitness goals.

Every session is tailored to your needs, and they track your progress to ensure steady improvement. I always leave with a smile on my face, sore muscles, and a real sense of accomplishment.

No matter your fitness level or goals, Kyle and Katie will meet you where you are, encourage you to push yourself, and keep you laughing along the way. They are simply the best!

Source: Google

★ 5

I'm a return customer with a 7-year gap in between. Walking into StudioFlex always feels like coming home. Kyle and Katie have worked hard to make this a welcoming, inclusive, and nonjudgmental space. They both genuinely care about the entirety of how someone is doing - physical/ mental, work/ school, and everyday life in between. My goals and training plan have been tailored to me, and it's allowed to change as we go along. I'm one of those people who used to joke: "If you see me running, there must be a bear chasing me!" I'm not naturally active, and I never thought I say this, but going to the gym can be fun! I enjoy my sessions so much that I don't notice how quickly the hour passes. I leave feeling happy, confident, and strong. I like the exercises with the available equipment - plenty of challenge and variety, given that StudioFlex is a small private gym. I get to track my progress with each exercise, which keeps my motivation up and helps me remember what to do on my own. I trust both Kyle and Katie and they take that seriously. There's a place for you here, so come join us!

Source: Google

★ 5

I’ve been working with Katie for a few months and the experience has been exceptional. She is personable, intelligent, kind, and supportive, consistently helping me work towards my goals. Her expertise is evident, and she’s always available to answer my questions. Katie tailors our workout sessions to my needs and how I’m feeling, ensuring each session is focused and effective. She challenges me while making me comfortable with unfamiliar equipment and exercises. She is truly the best trainer I’ve ever had. Investing in her training has been one of the best decisions I’ve made for my health, and I highly recommend this studio to everyone.

Source: Google

★ 5

Really happy to have found Kyle and StudioFlex. The studio is well equipped and immaculate. Kyle is knowledgeable, encouraging and tuned in to what I'm capable of (ie, I'm capable of doing more than I think!). I'm gaining confidence and knowledge, along with strength and balance. All the positive reviews are spot-on. 5+ stars and 2 thumbs up!

Source: Google

★ 5

Visited StudioFlex for an assessment with Kyle. So impressed with their facility! I'm not a gym person and find most gym environments a little overwhelming. I did not feel this way at all at StudioFlex. I can see why they have a solid five star reviews. Kyle made me feel very welcome and was so knowledgeable. I highly recommend a visit!

Source: Google

★ 5

If I could give more stars I would. I was a client here before the pandemic, and restarted back with Kyle in February 2023. When I walked back in for my first session, it felt like coming back home. Kyle, Katie, Ryan, and Dorian are all AMAZING! So while Kyle is my boo, I would go to any of them if he was unavailable. The small, private studio really allows for personalized attention. I am stronger than ever and through consistent training over the past 14 months have gone from a size 12 to a size 8. I'm so thankful for this crew!

Source: Google

★ 5

Source: Google

★ 5

I found StudioFlex via Yelp and was thrilled that I did. I recently checked it out and had an assessment by one of the owners, Kyle Gee. The facility is fantastic - very clean, state of the art equipment and a good variety of it. There is a small parking lot that makes it very convenient and easy. Besides the awesome facility, I have to give a huge shout out to Kyle. His intake and assessment was really thorough - he asked a lot of excellent questions to ensure that he had all the information needed as a trainer, but also to ensure that my needs/goals would be met. Kyle inspired confidence and truly showed he cared about my health journey. You would be in great hands at StudioFlex should you check it out - which you should!

Source: Google

★ 5

I am so lucky to have found StudioFlex! I currently work with Kyle who knows exactly how to motivate and push me to reach my goals. In just a month I have seen and felt the improves. My work consists of me doing some heavy lifting that has gotten harder to do. Kyle came up with a schedule for me that has made lift my 85-pound instrument easy again. I’m feeling the best I have felt in a long time! Thank you, Kyle!

Source: Google

★ 5

Kyle Gee is the best trainer I’ve ever had. He’s so positive and motivating. He’s highly educated about all things training, body mechanics, and muscle anatomy. Highly recommend him. I love every session we have together.

Source: Google

★ 5

Kyle and Katie are the best!!
So efficient with their programs and their welcoming vibe transcends into the positive experience I've been enjoying!

Source: Google

★ 5

I've been searching for a good place to stay away from back and neck pain due to bad posture. At first, studioFlex caught my attention during the COVID time because they accommodate no more than 2 customers working out at the same time in a spacious facility.

After 3 years, my weekly workout with Katie has been a built in part of my life. Even after moving 20 miles away from the facility, even after exploring a range of alternative workout solutions from home gym to commercial ones, that personalized training routine, and the full body workout is irreplaceable. I have more strength, I sleep better, and also got much more positive energy walking out of the gym every week.

Thank you StudioFlex for bringing the physical results and mental energy to my life. I'm so proud to be part of you!

Source: Google

★ 5

I found StudioFlex shortly after moving back to SF earlier this year. I had just moved and hadn't been exercising regularly thanks to the big move, holidays, etc., and I was really feeling it...not in a great way.

From the start, Kyle has been great. I reached out and Kyle himself got back to me almost immediately and we set up a consultation for shortly thereafter. He was immediately and very genuinely friendly, and listened intently to where I was with my health/fitness at the time, where I'd been, and where I wanted to go. We set up a plan and I made the commitment.

I see Kyle twice a week and every time, it's great. He's always positive and encouraging, greeting me with a smile every session. He keeps me accountable and pushes me to make more mindful decisions about my health all around. Sessions are planned thoughtfully and when necessary, we pivot, sometimes even on the spot! He shows me proper form, pushes me when he knows I've got more in the tank, and keeps me going! He also keeps me accountable in a firm and kind way. He's got a genuine, positive energy that I've rarely encountered and it is such a treat.

Every time I train with Kyle, I feel great both physically and emotionally. If I could, I'd train with him daily.

Source: Google

★ 5

I'd give way more stars if I could. I've been seeing Kyle twice a week for several months and I could not be happier. I am strong again, I'm confident again, and I'm on track with all of my goals. My eating is better, as is my sleep and my mood. I'm excited to move my body everyday now, not just on training days with Kyle. I have less nagging pain in my body and much more energy.

Kyle takes his time with me and answers questions about food, recovery, fitness, and anything else that comes up. He is thoughtful and knowledgeable in his recommendations. He helps modify things when my energy is low and helps me push myself when there's gas in the tank. We didn't miss a beat when I was on vacation and were able to do remote sessions. Kyle was able to work with the limited equipment I had on hand.

He helps me stay accountable to myself when it comes to self care across the board, not just with fitness and nutrition, but is never pushy or judgy. Everyone at the gym is kind, genuine, and welcoming. I always look forward to my days at StudioFlex and recommend this gym to anyone who is considering it!

Source: Google

★ 5

Studio Flex has been a godsend for me. I was at an all-time low (in other words, an all time high weight), and I'd had it with promising myself that I'd exercise. I needed more accountability and so I sought out a personal trainer. I had read some excellent reviews of a local small gym called Studio Flex and decided I would invest some money and time into jump starting my exercise regime. I'm sure glad I did as Studio Flex is the exact type of gym I was looking for. it's very private (usually my trainer and I are the only ones in the gym), so I don't feel self conscious. and the trainers I have worked with are so knowledgeable, encouraging, and sweet, particularly Katie, who is one of the owners. Kyle, also an owner, is super positive and friendly as well. Katie always checks in with me, cares about not just my physical state but my mental state as well, helps answer fitness and nutrition questions, and helps to keep me accountable to my goals. Most of all, she pushes me to do my best even when I'm having a tough or tiring day. I have found myself to be fitting in my clothes better, feeling stronger, and getting less winded when I walk in the four short months I have been coming. I highly recommend this small, independently owned business

Source: Google

★ 5

I’ve been training at StudioFlex for 4 & 1/2 month now and let me say, this place is awesome!! The space is perfect for the working sessions, boasting a great array of machines and weights. Not to mention both trainers are the type of people who make you feel safe in your workouts, as well as excited to train.

I came in with some pre-existing injuries and Kyle was able to plan a program that not only is mindful of this, but is also still helping me hit my goals for weight loss and strength training. One of the highlights of my week is coming in to train with Kyle.

Highly Recommend!

Source: Google

★ 5

I’ve been working with Dorian at StudioFlex for the last 9 months, and the difference he has made in my fitness journey is incredible. He’s patient, kind, and always keeps me motivated while still challenging me during every session. He takes the time to review my progress and personalizes the sessions for my specific goals. I am way stronger than I’ve ever been and feel amazing thanks to him. Dorian is incredibly knowledgeable and by far the best personal trainer I’ve had, and I highly recommend him to anyone.

Source: Google

★ 5

The best for phenomenal training that makes you feel supported through every step (even when you’re not at the gym). I work weekly with Kyle and he creates an amazing atmosphere of support and approachability. Every training session is curated so specifically to your needs and made to be so much fun! He also has experience with his own physical transformation that truly brings a different level of understanding for anyone with similar goals. Beautiful people doing beautiful work 😊

Source: Google

★ 5

Katie at StudioFlex is the best trainer and I can't say enough great things about her! I started seeing Katie in 2018 because I was tired of back injuries due to a lack of a strong core. Not only has Katie helped me become stronger over the last 5 years, but my back feels 15 years younger and that is priceless! Her training style and the way she designs our one-on-one work outs is perfect for me. If you're looking for a personal trainer, Katie should be at the top of your list!

Source: Google

★ 5

I trained with Katie for over one year, and I have nothing but great things to say about my sessions with Katie!
Katie is super friendly and personable. It was easy to share with her my concerns and fitness goals. She tailored each session to my level of fitness, while still adding some challenges so that I improve each session. I scheduled my sessions after work, and I always looked forward to coming to the session, no matter how tired I was at work.
I also appreciated that Katie was very flexible to reschedule sessions when I could not make them at the regular scheduled time. For a working professional with frequent business trips, this flexibility was very helpful. Since the training, I enjoy hiking and outdoor activities. I can proudly say that I am fit. I love the new level of fitness and physical health I have achieved!

Source: Google

★ 5

I have been training with Katie for 2 years now and she's the best! I have a crazy work schedule so my appointment times are always changing week to week, and she works to make sure I get each of my sessions in. Katie has always been super encouraging and works with any back, knee, or other pain I have each session, while still making sure I get a great workout in. I love that's a private gym, making it much less intimidating when starting out, since that was a big hurdle for me when I started my fitness journey. I have learned so much and love all of the exercises I have learned to do properly! I always leave feeling strong and exhausted, the perfect combo! Highly recommend!

Source: Google

★ 5

I can't say enough good things about training with Kyle at StudioFlex. My husband and I signed up last August for partner training with Kyle, and we do all our sessions together. To say this is ideal for us would be an understatement! We get one-on-one sessions with Kyle in a private environment, and he customizes our program to our goals, deftly working around any conditions we might have. It's been an incredibly fun thing for us to do together. We find that we're so energized by our sessions, and Kyle is SO fun to be around, that we really look forward to our workouts. For my husband, it's been more motivating than anything he's ever done at home or at a traditional gym. And while I'm able to motivate to work out at home, the results I'm getting from training on top-notch equipment under Kyle's expertise is something I'd never, ever get from digital classes. If you're on the fence, honestly, go for it!

Source: Google

★ 5

I have a metal knee and tibia implant from bone cancer and Kyle Gee has achieved better results in just one year than my years of physical therapy. Kyle takes the time to understand the unique physiological effects of an individual’s injury or impairment had he designs a workout that is challenging and results oriented. My orthopedic surgeon even wrote a “medical necessity” on my chart so that I could use my health savings account to pay for the sessions tax free! The results are that good.

Kyle puts thought into your workout and keeps it challenging and interesting. Moreover, Kyle is a genuinely great person and is fun to work with.

Source: Google

★ 5

Source: Google

★ 5

VIRTUAL training is available here. When the gym first closed I thought I could work out on my own, but I never got into a regular routine. I was hesitant at first, but now that I do Facetime workouts with Katie, I am getting back into the habit and getting just as good a workout at home as I got at the gym. She knows what equipment I have and walks me through a workout as though I was there-with more of a push than I would ever give myself alone. I don't need a mask or to worry about anyone near me. If your gym is closed, or if you are a Studio Flex regular who hasn't been working out, try a Zoom or Facetime virtual workout from the comfort of your own home!

Source: Google

★ 5

Outstanding trainers, especially Kyle

Source: Google

★ 5

I cannot say enough good things about this place. Katie and Kyle are knowledgeable about fitness and also happen to be two of the nicest people you'll ever meet. Their studio is well-maintained, and being there makes you want to push yourself into your highest gear. I would recommend coming here for personal training if you are the type of person who either 1) has trouble getting yourself to work out (I found that having a scheduled time to work out made me less likely to flake) or 2) would like instruction on what exercises to do, proper technique, etc. I love the variety in my workouts. Every day is something different, and that kept things from getting stale. I also love supporting a small, local business over a big chain.

Source: Google

★ 5

I have been training with Kyle and Studioflex for the past year and I continue to sign up for more sessions because the experience has been terrific. The facilities are private and spacious and Kyle is continually bringing in new training equipment that bring new fun exercises into scope. Kyle is a perfect coach who combines deep technical knowledge of muscles and the body, creative new exercises and continuous enthusiasm to each session.

Source: Google

★ 5

When I was in my 20s, I could skip a couple meals, run a few miles and drop weight like nothing. Now that I'm in my mid-30s, it is A LOT more work. Life stresses took a toll and often wine won over working out to cope. OK, let's be real - wine always won over working out! Well, seven months ago I was the heaviest, most unhealthy version of myself... and I hated it.

It took feeling that bad for me to make the decision to invest in my health and change my habits, and that first step was contacting Katie at Studio Flex. Best decision ever!! Katie has been a HUGE part of my fitness journey and I am so grateful to be able to work with her. I've learned so much and always look forward to my training sessions with her. I appreciate how she always mixes things up to keep the workouts interesting and her nice way of encouraging me to push harder. My workouts with Katie have also helped me build confidence to feel comfortable working out with friends, and I can honestly say I now crave working out instead of dreading it!

As a quick glimpse into the progress I've made with Katie - At my consultation in June 2016, I was 33.2% body fat and in the "obese" category. Yikes! Fast forward to today (Jan 2017) and I am now the healthiest and strongest I've ever been; down 7.9% body fat at 25.3% (only 1% away from the 'fitness' category) and comfortably fitting in all of my clothes again.

All thanks to Katie for motivating me and inspiring me every week!

Source: Google

★ 5

Hands down, one of the best studios that I've visited in the Bay Area.

I was very impressed with the quality of the trainers, the intensity of the workouts, and the overall workout environment.

I played Division I athletics at St. Mary's College and would recommend the Studio Flex trainers and classes to the highest level of athletes.

Source: Google

★ 5

Very satisfied with StudioFlex. The results that I've seen are incredible. The facility is clean. The staff is friendly and knowledgeable. I would highly recommend to anyone looking to get in shape.

Source: Google

★ 5

Studio Flex is by far the most amazing studio I have ever been to. The gorgeous studio is the perfect setting to achieve your fitness goals! Their equipment is state of the art and the trainers take you step by step on how to use them. Katie and Kyle, the personal trainers are excellent! I was impressed with them on Day 1. They are always professional and approachable. They are always friendly and so motivating during work outs. Both provide a wealth of knowledge and are always willing to come up with answers and solutions to your questions! They help with diet and work out plans. The group work outs were so fun! They were high energy and high calorie burning! Katie's Butt and Abs class was one of my favorite. And the classes are smaller so you can get more personal attention. And all fitness levels are welcome so I always felt comfortable. I know I will be able to reach my fitness goals with these two leading me! I highly recommend signing up today!

Source: Google

★ 5

I have trained with Katie for the past 10 weeks and I couldn't be happier with my results! I highly recommend Studio Flex to everyone. I've struggled with working out my whole life and Katie showed me what works for me and how to get the results I've always wanted. I always look forward to my workouts here and enjoy the pleasant atmosphere of the gym. Katie is an excellent trainer and motivator and I couldn't be more thankful for our sessions together.

Source: Google

★ 5

I love this gym! I have been working with Katie for a little over a year and during that time I have seen improvement in every muscle area as well as my fitness overall. I was a little worried when I started here that the schedule would be too rigid, the workouts would be more than I could handle, and it wouldn't be worth it. I can assure you though, the level of commitment the trainers at StudioFlex make to their clients is exceptional. I've never had a problem moving or adjusting my scheduled workouts, Katie has been accommodating of any injuries or areas I want to work on or avoid, and the workouts are always focused enough that it doesn't feel like a chore. Katie keeps the energy up and the focus on you, and she has definitely changed the way I look at what personal training should be. I would definitely recommend this place to anyone looking to get in shape using the right kind of guidance.

Source: Google

★ 5

The short version: Excellent. I'd recommend StudioFlex to anyone who wants efficient work outs.
The long version: The facilities are excellent. Because it's personal training, and one on one, I've never had to wait to perform an exercise. I've met a couple of the trainers in passing, and they have always been friendly. I train with Katie, who has been fantastic. She's always positive, even when I'm not, and has been a great motivator. She always brings great energy and seems genuinely pleased to see you. Working out with Katie for a half hour, 3 times a week, coupled with a reasonable diet has produced results beyond my expectations. I'm extremely happy I found StudioFlex, and plan on training there for the foreseeable future.

Source: Google

★ 5

Source: Google

★ 5

Source: Google

★ 5

Source: Google

★ 5

Source: Google

★ 5

The StudioFlex training club classes are the best exercise classes I have ever participated in. The small group allows Katie and Kyle to give each participant the attention needed to make sure you are using the correct form. They also make each workout unique by combining a different set of cardio and weighted exercises at each class. They accommodate all levels of fitness, and all ages of adults. If you are looking for workouts that burn calories, are varied and fun, you should come try a class. The first class is free.

Source: Google