I would go back to the San Francisco St. Regis in a heartbeat. (In fact, I'm planning on it.) The hotel is aesthetically lovely, the rooms well appointed and comfortable - great bed! - the food excellent, and the service exemplary. We usually get out of our room and traipse about the city. But the hotel was so relaxing, provided everything we wanted, and perfectly located across the street from the Yerba Buena Center where we had tickets for a performance, we decided to succumb to the luxury of time and the place. It was a perfect weekend.