★ 5

I’ve been doing the adult sessions and it actually helped a lot with my EMT work. I feel stronger, my endurance is better, and the workouts are straightforward and effective. The coaches are also super knowledgeable and motivating. Highly recommend this place!

Source: Google

★ 5

Been training with Derek for a few years now, extremely friendly, professional and really does care to hit the goals you want!

Source: Google

★ 5

Great experience awesome atmosphere. Definitely worth it

Source: Google

★ 5

Thanks Leslie! Always keeping me motivated

Source: Google

★ 5

Really good for fitness program.

Source: Google

★ 5

This D1 facility is top of the line from the equipment to the staff. General Manager Khristian is a true professional with tons of knowledge on weight training and athletic training. He can tell you the why behind everything you’re doing. You can tell he truly cares about the customers and wants to help them improve. I recommend this facility. Looking forward to my next session!

Source: Google

★ 5

Dedicated coaches just pushing you to be better!

Source: Google

★ 5

D1 Training is amazing! The coaches here truly care about your goals and push you to do your best every session. The workouts are challenging but motivating, and the environment is super positive. The general manager Khrystan is very knowledgeable and has the expertise to get you to your goals. The head coach Derek is amazing and motivates every single person to do their best. Highly recommend this establishment for anyone who wants to reach their goals or have kids that are athletes. They provide a great community for everyone involved in bettering themselves.

Source: Google

★ 5

D1 Princeton is a great gym! The trainers make everyone feel welcome.

Source: Google

★ 5

Khrystan has a work ethic that is proven for success. Between his playing experience and his personal knowledge he has all the tools to get the most out of you and help you reach your goals. If you are looking to improve yourself physically and mentally D1 Training Princeton is your go-to place!

Source: Google

★ 5

Wow what a great experience, D1 training helped me a lot on achieving my goals that I thought that never could be possible And the staff is amazing extremely helpful and understanding in helping me be the best that I could be.

Source: Google

★ 5

I can see my son’s improvement in strength, speed. Thanks to D1 staff

Source: Google

★ 5

As an adult founding member of D1 Training in Princeton and attending classes regularly for several months I can say that the training at this gym is fantastic. I learned a lot about my technique and new movements that helped me develop a more well rounded fitness routine. These classes reminded me of my training back when I was a competitive athlete and the coaches were always encouraging and motivating. I highly recommend D1 to adults in the Princeton area who are either trying to get back into their fitness routine or looking to expand their scope of knowledge when it comes to training.

Source: Google

★ 5

Daughter entering Junior year of HS. Really enjoys the personalized workouts and the variety. She is shown proper technique and looks forward to working out.

Source: Google

★ 5

We highly recommend Coach Tyler from D1 in Princeton. From day one, he's been incredibly great with my son, showing genuine kindness and an amazing ability to be accommodating to his needs. It's clear he has a real knack for connecting with kids; our son absolutely loves his sessions. He's truly awesome and we're so grateful for his positive impact.

Beyond thankful.
Thank you Tyler!

Source: Google

★ 5

D1 Fitness has been amazing for my 15-year-old son! The facility is great, and his trainer Tyler is outstanding—super friendly, encouraging, and really connects well with teens. My son actually looks forward to every session and has grown stronger, more confident, and motivated. Highly recommend!

Source: Google

★ 5

I’ve tried many different fitness franchises. D1 Training really lives up to its mission of athletic-based training in a motivating, team-oriented environment. The workouts have great variety, are challenging but adjustable for all levels, and the coaches at Lawrenceville have been awesome to work with.
Coach Leslie and Coach Derek bring awesome energy, push you to get better every time, and make the workouts fun and effective. Great community!

Source: Google

★ 5

Source: Google

★ 5

Coach Brian helped my son go from 80mph on the mound to 92mph in just 2 years! So grateful for him and the staff at D1!! My son is now committed to play at D1 baseball at Virginia Tech!!

Source: Google

★ 5

Great gym with clean equipment and good vibes all around. Shoutout to the front desk Alison always welcoming and super helpful!

Source: Google

★ 5

Awesome gym with a great atmosphere. Big shoutout to the front desk Alison they’re always friendly and make checking in a breeze!

Source: Google

★ 5

Love this gym always clean and never too packed. The front desk Alison is the best, always greeting with a smile and good energy!

Source: Google

★ 5

Brian is a great coach! Would recommend him to anyone who wants to get stronger or improve at their sport! His coaching is far beyond just the physical aspect as he can help with motivation and the mental side of training as well!

Source: Google

★ 5

Awesome facility with an awesome faculty. They did an amazing job with my young child learning baseball. Shoutout Coach Brian.

Source: Google

★ 5

We’ve really enjoyed the training experience here so far. This has been a great introduction to the world of weightlifting and functional fitness for my son. He especially enjoys the variety and challenge of the workouts. Jayden has been a great trainer for him and Khyrstan is incredibly knowledgeable and helpful too. Khrystan answered all of my questions and made the onboarding process a breeze. I would definitely recommend this place for young athletes looking to build strength and conditioning.

Source: Google

★ 5

My 13 year old son, who is a competitive soccer player, trains at D1 with Tyler, one on one. Not only has Tyler helped my son to learn good habits when it comes to beginning weight lifting, but he has also improved his strength , confidence, and knowledge about injury prevention. Not only is he great with my son, but he is so flexible and easily accommodates my family's constantly changing schedule.

Source: Google

★ 5

Great facility! Staff is very friendly and extremely knowledgeable. Tyler Saurborn is a great trainer. Very patient, explains everything thoroughly and wants you to see and feel the results. You can tell he takes your goals and time seriously.

Source: Google

★ 5

I love love love this place. They literally make my tennis game better; less pain. They’re fun and knowledgeable. Shout out to Khrystan the GM and my awesome trainer Tyler. Fun for ladies group trainings too. They work with your sport.

Source: Google

★ 5

Just joined D1 last month and I’m absolutely blown away! From day one, Khrystan and the staff has been incredibly respectful and welcoming - they really make you feel at home. The facilities are top-notch and I’m seeing results already. I’m definitely not looking back to my old gym! Coach Leslie is the baddest! Take class with her!! If you’re on the fence about trying a new place, do yourself a favor and check out D1. You won’t regret it! Highly recommend to anyone serious about their fitness journey!

Source: Google

★ 5

My son like may kids nowadays has very inactive lifestyle. I enrolled with with some hope and he ended up to love D1 training. The group setting makes it so fun for him and little by little he is getting more and more flexible.

Source: Google

★ 5

D1 is a comprehensive training facility that has met the needs of our son and his overall development in becoming a better prepared football player. While some facilities focus on developing speed, explosiveness and mobility, D1 takes this to the next level by including Olympic-lifting and proper technique, which for our son gives him a upper hand as he starts looking for a high school to attend next year.

I have included videos on how he transformed himself in two months after starting the program, as well as a video on how his 40 yard dash time has improved (May 2022 he was over 7 seconds, last year his best was 6.18 and last week he got it down to 5.4 in the 100 degree heat!).

D1 has top notch trainers that keep the athletes completely engaged during their one hour sessions. Would highly recommend them!

Source: Google

★ 5

I recommend D1 Training Princeton very highly. My son has the most amazing trainer. The entire group is very friendly and they couldn't be more accommodating. They have made my son feel very comfortable in his one-on-one training. Coach Tyler has really connected with my son which has made his workouts more effective and my son truly enjoys going to his workouts.

Source: Google

★ 5

D1 Fitness in Princeton has been a game changer for me. Coming back from an injury, I needed something structured and personalized and that’s exactly what I found. The tailored workouts, combined with the structure, accountability, and positive environment, have helped me not only regain strength but also become a better version of myself. After just a few short sessions, I noticed real progress. Highly recommend to anyone serious about improving both physically and mentally.

Source: Google

★ 5

The strength improvement I’ve seen in our son has not gone unnoticed. Not only is he having fun while training at D1 he is also actively choosing it over other activities. We see it’s enhancing the sport skills and that we are grateful for that. If you’re debating about whether or not to sign up don’t it’s worth it.

Source: Google

★ 5

When you walk into this facility, you will how intense the training is, but also will feel very welcoming by all of the staff members. All of these staff members push you to surpass your limits and do the best you can do every time you are there. Most definitely is 5 star training and highly recommended.

Source: Google

★ 5

Great place. Best trainers in the area. Cheapest in the area as well. They have true D1 athletes as trainers in this facility.

Source: Google

★ 5

Khrystan Camello and his team are the best.

Source: Google

★ 5

Source: Google

★ 5

Love it here so far at D1! So family friendly, and extremely reliable staff. Also helps that it’s in the perfect location. Can’t wait to come back!

Source: Google

★ 5

I love this place. This place is great. Bathrooms are clean as a whistle. Instructors are polite and accommodating. Worth the money!

Source: Google

★ 1

They say it wasn't a contract, but they say if you can come on the weekday, you'll pay, but if you don't pay the following week, you'll still get your money. Something they'll never tell you.

Source: Google

★ 5

new to the area and found D1. i've heard of them in other cities but never had one near me. staff is very friendly and the coaches are all super knowledgeable and will push you to put in the work! so far i've worked with khrystan, tyler and bruno and all of them have been great!

Source: Google

★ 5

You are the best! D1

Source: Google

★ 5

New to D1 and I absolutely LOVE IT!! The general manager Khrystan is the best!! He was super attentive to my goals and explained in great detail how to accomplish them. I attend the evening classes Jaiden is who conducts the group sessions at the time. He was amazing I loved that regardless of it being group-oriented he made sure I did workouts tailored to my fitness goals! All the staff is super nice and for this to be a coed facility it’s extremely clean, definitely would recommend it. My thirteen-year-old daughter attends the group sessions in the evening and she loves it as well!!

Source: Google

★ 5

Khrystan is an outstanding trainer who goes above and beyond to support his clients. I’ve been in contact with him for months, and he has always been incredibly transparent and responsive. He took the time to explain the trial period in detail and how it worked. He also conducted my son's evaluation and provided a thorough explanation of where he stood, along with well-thought-out recommendations.

Additionally, the trainers Jermaine and Donte are amazing—both highly experienced and knowledgeable. Their expertise and dedication make a huge difference in the training process. I highly recommend this team for anyone looking for quality training and guidance.

Source: Google

★ 5

Saw IG ads for this place late last year and spoke with Khrystan. Signed my son up for the 2 week free trail and left a card on file. One of the most transparent people I have dealt with in a very long time. Ended up cancelling after the free trial because we joined Life Time in January. We got refunded after the two week trial and ended up coming back and joining D1. Khrystan has been very clear, fair and transparent through the whole process and really wants you to get the most of what D1 has to offer. Would recommend this place to anyone!

Source: Google

★ 1

The management is quite disappointing. Last year, I signed up for a two-week trial while searching for a gym for my two kids. I didn’t receive any phone calls, texts, or emails until I had to reach out to them myself to inquire about the kids' class schedule. Eventually, I got in touch with the manager, Khrystan, and learned that there were already 60 kids enrolled in the Rookie class. I expressed my concern that the class size was too large for my children and mentioned that I would be looking for a different gym. Our conversation lasted over an hour, during which he persistently tried to convince me to take the free trial, urging me to come in and observe the class. Despite my repeated refusals, he continued talking, and I had to cut him off to end the conversation. I was clear with him that I don't want to sign up for the 2 week free trial.

Fast forward to the last few weeks, and I noticed D1 has been charging me $159 for a membership every week, so I called Khrystan again. I was taken aback by our conversation. He claimed he didn’t remember our previous discussion where I clearly stated I didn’t want to sign up for trail 2 weeks program. His explanations were confusing, and he mentioned that many people were calling to cancel, which made it hard for him to recall everything.

He outright refused to refund my $159, claiming there was no documentation and insisting that I didn't want to sign up. To clarify, Krystan took my credit card details over the phone last year while they were still in the process of building the gym. I never set up an online account with them. I was really confused because I had clearly expressed my intention to cancel the trial and not take part at all. As a result, I had to reach out to my credit card company to dispute the charge. D1 should not charge anyone's credit card if they haven't officially signed up or participated in the trial period.

Source: Google

★ 5

Source: Google

★ 5

Krystan is an amazing trainer - committed to helping you achieve the best possible you. He always knows just the perfect motivation, and backs up his recommendations with well-researched techniques and advice. Hands down an excellent trainer.

Source: Google

★ 5

Khrystan is a pro trainer. You will learn training techniques which are unique and different from the usual

Source: Google

★ 5

I could bet all the tea in China that you’re in good hands here, it’s not just training it’s a lifestyle change. Don’t miss out on the rest of your life!

Source: Google

★ 5

Khrystan genuinely cares about all of his clients and works diligently to not only prepare effective training plans, but to motivate them as well. He helped me achieve my dream body and continues to support and hold me accountable.

Source: Google

★ 5

Khrystan is honestly amazing to work with! If you have a goal in mind, trust your results in his hands.

Source: Google

★ 5

My guy Khrystian and his team know their stuff! Always have a great time, learn a lot and get a good pump.

Source: Google

★ 5

In order to bring the best out of any athlete you need the best team to support and guide them towards their goals. As general manager and as a trainer Khrystan is the best in the business. He has the leadership capabilities to pilot the team and he has the knowledge and experience to take any athlete to the next level.

Source: Google

★ 5

Happy to hear Khrystan will be running things here. From Personal Trainer to PT Director to now Management. I know he has the knowledge and wisdom to lead his clients and trainers to success!!

Source: Google

★ 5

Great atmosphere! Khrystan is extremely knowledgeable and an amazing coach!

Source: Google

★ 5

Awesome place to workout. Great environment and great people. Khrystan is awesome and will 100% get you to where you want to go. Highly professional and highly recommend

Source: Google

★ 5

Coach Khrystan is a great coach. I worked out with him personally and he is very knowledgeable and result oriented. He respects my age and very decent. He adjusts his schedule as per our schedule.

Source: Google

★ 5

Khrystan is one of the best trainers! being a beginner at the gym was intimidating but he made it very comfortable! 100% recommend this spot!

Source: Google

★ 5

Khrystan is a great guy and an absolutely fantastic trainer! He has a wealth of experience and knowledge that has helped me achieve my fitness goals. I would definitely recommend him to anyone seeking an experienced trainer who is more than willing and able to support you.

Source: Google

★ 5

Khrystan has an excellent work ethic not only when it comes to training but person health and fitness, has a great understanding of the human body and what exercises and nutrition is needed to perform and excel in your body transformation goals

Source: Google

★ 5

Khyrstan is a great trainer and person. He was able to get me to my fitness goal by providing great workout and diet plans. He also helped me get through a tough time in my life. Definitely try him out!

Source: Google

★ 5

Amazing place! Khrystan is a good guy with a lot of knowledge and experience with fitness and has had helped me out a lot. I definitely recommend! 👍

Source: Google

★ 5

Khrystan is an amazing personal trainer he always knows what he is doing and is focused I would recommend him for personal trainer .

Source: Google

★ 5

Love love love Khrystan!!!
He is an amazing personal trainer. He helped me build the strength in my muscles that I was looking for. He is also a fun guy 😊

Source: Google