★ 5

I have been training with Max from Sincere Athletics for a over a month and have seen incredible progress in both my boxing technique and overall weight loss. He is extremely focused and doesn't let anything slip through the cracks. He stays on top of me, keeps me accountable and pushes me just the right amount. His sessions are always well-structured and tailored to my goals. Whether its' improving strength, endurance, or form, he brings both knowledge and intensity in a way that motivates me without overwhelming. I genuinely look forward to our workouts and appreciate his commitment to my progress. Highly recommend him to anyone looking for real results and a no-nonsense approach to training.

Source: Google

★ 5

I've been really enjoying the service I'm receiving at Sincere Athletics. The trainer is incredibly encouraging and genuinely committed to helping me reach my fitness goals. I highly recommend the boxing classes — the trainer is both tactical and informative, which makes every session effective and engaging. I can feel myself becoming stronger every day, and that progress keeps me motivated. Excellent experience all around!

Source: Google

★ 5

I Met Sincere Athletics while working out a few years back. I’ve been boxing for 6 years and wanted some spar work / conditioning and this was the facility / program I came too. Great Work / Great ethic / wisdom / great energy. Sincere Atheltics coaches Children / Women and Fighters .

Source: Google

★ 5

I've been training off and on in boxing for a long time when I can get it in. It's something I love to do but hard to stay consistent with a demanding career. Anytime I've had trainers, I've found it stressful trying to get to the gym ready to rock when work is intense. I linked with Coach Max and it's been a paradigm shift - like I need to make the time and reset my mind and get it in. My favorite days of the week are training with Coach. I leave feeling invigorated, reset and I'm downloading crazy knowledge. Coach Max is official, comes from a lineage of dope coaches and has a wealth of knowledge that's battle tested. If you're a novice looking to learn the ropes or a vet looking to expand your repertoire - get with Coach Max and rock well.

Source: Google

★ 5

Maxwell is an excellent coach! He explains directions clearly and makes training fun.

Source: Google

★ 5

Coach Max is very knowledgeable, diligent, and patient as he will help train you from all skill levels to a complete fighter. I have significantly improved in all areas of boxing in just a few months of training with him, and with every lesson I go home learning something new. Highly recommend Max to anyone serious about becoming a great boxer and fighter.

Source: Google

★ 5

Detailed and patient instruction. You will see a difference in the way you move and undestanding of your bodies kinetics. Best of all, you'll be a better fighter!

Source: Google

★ 5

Have worked with Coach two times now two years apart and I must say, I truly respect his philosophy and commitment to the martial arts mindset and his clients. It’s not physical fitness where you will see results but also an overall shift in mindset which leads to more holistic good health. Highly recommend!

Source: Google

★ 5

Couldn't have asked for a better trainer! He's the best

Source: Google

★ 5

I began training boxing with Coach Max as a complete beginner. He patiently guided me through the fundamentals and in just a few months of training my skills have come a long way. I’m looking forward to continuing my training and honing my skills.

Coach Max is sincerely a great teacher and master of his craft! He has a wealth of martial arts knowledge ranging many disciplines. You can see this exemplified in his unique boxing style, which incorporates techniques from many disciplines. I highly recommend training with Sincere Athletics!

Source: Google

★ 5

Amazing gym the trainer is extremely hands on & efficient. I made a great choice choosing Sincere to train me.

Source: Google

★ 5

Best trainer ever! So glad I made the choice to work with Sincere Athletics. Great workout for my mind and body. I just added another day in my schedule!!!

Source: Google

★ 5

Coach Max is great! I was looking for a place to get started with boxing and I’m so happy I found Coach Max. From the very beginning he is committed to ensuring you get the outcome you desire from the experience. Whether you are interested in boxing for general fitness, self defense, or both he will tailor your training to get you to your desired outcome. He is knowledgeable, patience and an overall awesome coach. Definitely recommend!

Source: Google

★ 5

Sincere athletics won’t disappoint you. His techniques are swift and precise.I trust him. My son and I have learned a lot from Sincere.
He is really a nice person and devotes his time to the community. I also find his clothing line to be very comfortable. Thanks Sincere Athletics!

Source: Google

★ 5

Max is great and the results are amazing. This is my first time boxing, but in under 10 hours, I already feel like I've learned a lot. People aren't lying when they say boxing burns a lot of calories. Max is patient, gives out great instructions, he makes it fun, and he's extremely knowledgeable. The equipment is top notch and I can't wait to see how dangerous I become after a year from now.

Source: Google

★ 5

I can't say enough great things about Coach Max and Sincere Athletics. I've been boxing since 2015 and when I moved to Brooklyn in 2019 and left my first coach, I thought I would never find another trainer like the one I had. Took me some time but once I started training with Sincere Athletics, I knew I had found the right match. As the months went on, we developed a strong rapport and made a customized plan that worked for my training and fitness goals; it was on! He's so consistent but he's never afraid to push you to make yourself better. I've seen a huge improvement in my skills over the months and I owe that 100% to my coach. Communicative, understanding, and hard working are just a few words I can think describe what Sincere Athletics can give you. I'd give 10 stars if I could!! Try them out; you won't be disappointed!

Source: Google

★ 5

Sincere is a fantastic coach and trainer! I call him my fitness hypeman! He puts on the best jams to sing to while putting in hard work! I’ve learned about boxing, nutrition, wellness, and how to cultivate a mindset to hit my fitness goals. He’s been a great accountability partner without judgement. I lost weight and kept it off during the holidays!!!

When I was searching for a trainer, I found him on google. Out of everyone, including people I had worked with before, he was the most welcoming. He put in time with a free session to learn about who I am and my fitness levels, before talking numbers. I appreciated that! 🤩

Source: Google

★ 5

I’ve been working with Coach Maxwell for almost a year now. A committed professional, he cares about his people, knows how to push you, and has a great set of equipment. Excited to keep going!

Source: Google

★ 5

I'm DANGEROUS!!! (But only when I have to be) and it's all thank to Max Penn! Great trainer, very professional, and pushes you beyond (what you think) is your limits! The skill and fitness I've grown overall here is amazing! Would HIGHLY recommend Max Penn/Sincere Athlectics....not to mention now that I'm looking and feeling better he's got gear to accentuate that! Connect with him ASAP

Source: Google

★ 5

I highly recommend if you are looking for a personal trainer who will help you reach your fitness goal with a fitness plan and diet tailored to fit your needs (in terms of body type and fitness goals). He is very knowledgeable in the art of personal training and Martial Arts. You will have a fun time training with a dedicated and down-to-earth trainer who musical selection is just as vast as his knowledge of personal training and Martial Art. I am very happy with my fitness journey thus far and I am confident that I will reach my goal with Sincere Athletics.

Source: Google

★ 5

Great experience ! Very dedicated to his clients !

Source: Google

★ 5

This is the best experience I’ve had training in boxing, weight lifting, cardio and more. I highly recommend to people of all ages and shapes. There is something for everyone!

Source: Google

★ 5

I've had a great experience with Sincere Athletics. Maxwell is professional and dedicated to giving his clients an exceptional personal training experience. He customizes workout plans based on your personal goals and motivates and encourages you to achieve them. He is committed to maintaining a clean and safe gym which has helped me feel comfortable working out here during covid. I definitely recommend him to others.

Source: Google

★ 5

Training with PGB has been incredible, within a few weeks I’ve felt the changes in my body in terms of endurance & stamina. Boxing has also allowed me to feel more confident along with learning self defense strategies. I would definitely recommend classes to anyone who is interested in learning the art of boxing while getting a full body workout. Max is a great coach who pushes you to excel in each level of his classes.

Source: Google

★ 5

Maxwell is a wonderful thorough trainer. He takes his time with you and actually teaches you. I'm currently doing boxing and exercise with him and it only been a 2 weeks and i feel very toned and skill already. Definitely worth your money😊😊

Source: Google

★ 5

This is great spot to learn and workout at the same time . The best in town , boxing , martial arts etc

Source: Google

★ 5

Great training and also great conditioning! Very affordable services

Source: Google

★ 5

I would highly recommend Max as a trainer and boxing instructor. His knowledge and skills are unmatched. He showed great patience when helping me reach my goals. The equipment in his gym is state of the art. Max’s ability to motivate his clients and use different techniques are out of this world. In addition to his great knowledge of fitness he is an overall great person.

Source: Google

★ 5

Coach Maxwell is a true master of the arts from boxing to MMA. By far the best teacher I’ve had. Each time my husband and I train with coach it’s always full of great techniques, laughs, lessons and over great energy. Coach Maxwell is very patient and understanding! I highly recommend anyone to gain this experience to learn how great of a master he is and you will walk away feeling like a champion yourself!

Source: Google

★ 5

To say Sincere Fitness is an Elite training experience would be and understatement, Coach Maxwell is a true master of his craft skilled in mixed martial arts to boxing , I highly recommend his services you wont be disappointed

Source: Google

★ 5

I never post reviews. Positive or negative. However, I had to post a review for Coach Max. He is one of the best people I know and an absolute great trainer. This is coming from a misanthrope. He's motivating and makes working out fun. He's the realist in the streets (trust me on that). I highly recommend anyone who is scared of training to start with Sincere Fitness. He will have you doing things you couldn't imagine doing in no time. Training sessions are personally tailored and his attention to detail is rare to find. Ask him for his post workout shakes too!

Source: Google

★ 5

Source: Google

★ 5

Love working out and learning with Max every week. He is a great teacher and friendly trainer. Extremely knowledgeable. Explains concepts clearly and puts real thought into the programs and workouts. I exercise regularly on my own but my workouts here are the highlight of my week!
I've seen awesome results in just a few months working with Coach Max both physically and mentally.
The space is clean and welcoming. Equipment well kept. I would highly recommend Sincere Fitness to anyone seeking fitness or fighting goals!

Source: Google

★ 5

I started my kids working out with Maxwell and I was impressed from the first session. I felt like I’d gotten more than my money’s worth with how much they were being taught. They enjoyed the techniques and even the workouts. He kept things fun and creative. There were times when my kids weren’t feeling the idea of traditional workouts and he put on the suit and let them practice the boxing techniques on him. They were all too enthusiastic about that! Lol. I’m healing from a car accident, and once I’m fully cleared I plan on training with Maxwell & Sincere Fitness too. Also, one of my children is high functioning ASD and not everyone has the patience to work with him. Maxwell was great! If you’re on the fence, get off of it and jump right in! You’ll enjoy it!

Source: Google

★ 5

I have been working out with coach Maxwell for over a year now and his professional as well as his knowledge of his training is outstanding. I highly recommend at least trying a free session which he offers all of his new clients. You will leave dripping wet but you will be satisfied with the results!

Source: Google

★ 5

In the year I have trained with Coach Max, I have gained muscle, gained confidence and gained actual self defense skills. His approach to boxing incorporates various martial arts methods that work in the ring or in the streets. He is laser focused on technique but allows you the room to develop your own style. The studio is clean and well equipped, and the prices are reasonable. Best of all, Coach Max is good-natured but highly professional. Easily one of the best decisions I've made regarding my fitness.

Source: Google

★ 5

To me this is not a review of Sincere Fitness but a testimonial to what a great trainer and knowledgable coach can offer. Working with sincere fitness for over a year has helped to not only transform my physical appearance but helped to transform my mental thinking. Having the ability to stick to a plan and follow through is just as much about the mental as it is the physical portion.
Having not a trainer but a real coach in your corner to guide, correct mistakes and help you makes all the difference in the world.
Trust me Sincere Fitness is 100% the best workout and great coach you will find in Brooklyn.

Source: Google

★ 5

LOVE !!!! LOVE !!! LOVE!!!! Prior to moving to NY, I worked out regularly with a trainer in VA. I wanted to continue my journey to living a healthier lifestyle. For me, it's not only about the training, but the relationship between the trainer and my needs and fitness goals ( I CAN BE EXTRA AND WILL SAY WHATEVER OUT MY MOUTH ) was and is very important to me. Maxwell met me were I was at, and continuously pushed me beyond my expectations and through what limitations I thought I had. The workouts are creative, fun, and never the same. He puts time contouring your body, and makes the healthiest best tasting smoothies I have EVER had in my life. His prices and packages are more than reasonable, especially for it being NY. He is truly focused and dedicated to creating a healthier and better you.

Source: Google

★ 5

Sincere is professional n knowledgeable about the sport of boxing. He is also good @ teaching the techniques of it to I enjoy working with him tremendously

Source: Google

★ 5

This was my first time boxing and Max made it fun but with results in mind. To the point that even on days I was tired I made sure I got to my sessions. He's patient and encouraging but pushes you to try your best. If you haven't booked him yet, you need to!

Source: Google

★ 5

Hell of a boxing coach. Great trainer.

Source: Google

★ 5

One of the best investments I made. A1 boxing training, I recommend this place to anyone

Source: Google