Came here on the back of the great reviews and was not disappointed. This is a truly great hotel.
To start with, probably the easiest check in we've ever had and we were told our room had been upgraded to a junior king suite (we'd booked a king room). Also told we could go up to wine and cheese session if we wanted. Room was at the back of the hotel and quiet away from street noise. Bed large and comfortable with good shower. Clean room with water and chocolate given in the evening with card of the next days weather.
The hotel is in a great location only steps from Union Square, the cable cars etc. The staff at the front desk are pleasant and helpful with recommendations for things to do and good restaurants.
Breakfast is a spread of very good pastries with coffee, orange juice and water to drink. The wine and cheese in the evening is a good way to meet other guests, and the white wine we tried was really very nice.
Overall we had a great stay, and if we ever returned to SF I would definitely stay here.