HIIT group classes. Amazing gym and trainers. Always challenging and the best results. Clean, good location, good hours.

Love this full body, high intensity workout where you’re really challenged to work your hardest- giving amazing results. It’s also great for all levels of fitness as the instructors give modifications and remind you to listen to your body. Wouldn’t work out anywhere else, because there’s nothing else like it. Awesome instructors and fantastic bang for your buck. Highly recommend if you’re looking for variety and results.

One of the best workouts around! I constantly sweat the whole class! I also love that flex doesnt use body shaming jargon like work off that dessert last night like some other gyms do! They make you feel strong & confident in your body!

Flex provides a full body workout in an hour which leaves you feeling accomplished afterwards! Workouts are fun, challenging, and unique. Each class offers a different piece of equipment and the instructors do a great job of focusing on each movement associated with that equipment. Highly recommend!

I absolutely love FlexCity Fitness! The motivation, passion, and variety you receive in each workout is incredible. You will find yourself having a great community to motivate you to be your best. Doing these workouts has me in the best shape ever. Combining cardio, flexibility, and strength training! I love the variation in each workout and the challenge it brings me to help me reach my fitness goals! I would recommend FLEX to anyone and everyone!

Flex is an awesome high intensity workout. What I love the most is that each class is different and you dont know what it is going to be until you are there, therefore there is no time to talk yourself out of going! It is a group setting which pushes you to keep up with the rest of the class, but it is also created so you can work at your own pace. The staff is incredibly friendly and they treat you as friends. LOVE IT AND HIGHLY RECOMMEND if you are looking to get your butt kicked!

Ive played sports my entire life (softball, basketball, and volleyball) therefore I love the aspect of a challenge when I workout. Flex is an intense circuit based workout where you are constantly moving and challenging your body in multiple ways through various activities where the class you attend is different every day. I really enjoy my work outs here and you surely leave as a sweaty mess so you know you got your moneys worth!

This is my favorite fitness class in town; Ive tried MVP and Les Mills group classes and nothing comes close to the total body workout that you get at Flex. Not only is it different every time you attend class, but also each instructor has their own personal style (and soundtrack) to help you target those tough areas and increase your cardio stamina. Ive been a regular flexer since the Grand Rapids location opened - Ive dropped, inches, pounds, and seen my strength increase and my mile time decrease. Cant recommend this studio enough.

Love getting my workout in here. Great physical results. Very efficient use of time. Love.

Great workout! So much fun at such a fast pace that you dont realize how hard you are working!

Great instructors that really push you to your limits. I have a hard time working out anywhere else!

If youre looking for an intense yet scientifically based interval class in GR... FLEXcity Fitness is an incredible option.

Love working out here!

Really good full body workout.