Gregg Shipp credits much of the success of HiFi, a Lincoln Park personal training studio that he co-owns with his twin brother Drew, to luck. But he's just being modest. In business for more than 13 years, HiFi is better defined as a boutique gym rather than a personal training studio. Instead of making a nominal fee off of a pre-set rate, trainers pay HiFi to rent its space and set their own rates for clients. The 10,000-square-foot studio is full of bright colors and tons of open floor space for functional fitness workouts. Shipp says the privacy and relaxed atmosphere is a big draw for local chefs and celebrities. HiFi has smaller locker rooms, each with two showers, and also offers massage, facials and waxings and free parking. Prices vary based on the trainer, but package deals are always the cheaper way to go.

Centerstage Reviewer: Maya Henderson