Instead of relying on repetitive workouts and weight machines, Eric Su guides clients through free-form exercises that change with every session. Workouts often consist of using exercise balls by Bosu, powering through suspension training by TRX, and running around impossibly shaped tracks by Mobius. Clients can select the training hours that best suit their daily lives; sessions begin as late as 5:30 p.m. on weekdays and also take place on Saturday morning.