The Fitness Center at The St. Regis San Francisco
The fitness center at The St. Regis San Francisco is acknowledged by those who travel for a living. Out of 22 publications tracked on TripExpert, 3 endorsed the fitness center, like Frommer's, Gayot and Fodor's.
The St. Regis San Francisco 
Frommer's
Gayot
Fodor's
Frommer's "Bathrooms beckon with deep soaking tubs, 13-inch LCD TVs, rainfall shower heads, and fancy toiletries, but definitely leave your room for an afternoon at the posh two-floor Remède Spa, the huge pool and fitness center, and restaurant Grill, for hearty grilled meats and fish dishes"
Gayot "A tasteful, streamlined style with an emphasis on white and metallic tones is used throughout the hotel, which also includes three commissioned public art installations, 22,500 square feet of space for indoor and outdoor events, and a full fitness center with a 50-foot lap pool"
Fodor's "The 5700-square-foot fitness center features cardio machines, weights, and state-of-the-art equipment"
