5 Personal training sessions with Jeff Lecero, fitness consultant and certified personal trainer. He trains many Bay Area professional and Olympic athletes. Synergy San Francisco's most popular personal training studios since opening in 1995. The success of Synergy stems from its highly experienced, knowledgeable, and enthusiastic personal trainers. It's also a great place to come and work out with a trainer in a clean, comfortable, un-crowded and unpretentious atmosphere in three great San Francisco locations.