"Flex City Fitness, Heritage Hill Midtown. In a neighborhood that boasts the [Cheese Lady](www.onthegrid.city/grand-rapids/heritage-hill-midtown/the-cheese-lady), [Van's Pastry](www.onthegrid.city/grand-rapids/heritage-hill-midtown/vans-pastry-shoppe), and [Martha's Pizza](www.onthegrid.city/grand-rapids/heritage-hill-midtown/marthas-pizza), you have to assume there's some kind of gym, and right you would be. Whether you’re just visiting or living in GR, FlexCity Fitness is a Michigan based circuit-training concept gym that combines treadmill running, cycling, and strength training into a solid 55 minute workout to burn off all those bad decisions you made last night. This studio is approachable and friendly to all levels."