Great staff can't make up for dated and musty rooms
I recently stayed here for a conference for 2 nights. The lobby and conference rooms were well designed, modern and comfortable. Every staff member I encountered was professional, incredibly nice and very courteous. The only issue I had was my room on the 6th floor. The ceiling was so low I could touch it without jumping, and I'm very short. Popcorn ceilings and dark carpet made the room feel straight out of the 70's despite the modern linens. The room was very musty and I had to leave the window open for 24 hours before the smell finally left. There was a huge stain on the carpet right in the center of the room and the carpets as a whole felt slightly sticky. I wore socks at all times. 
The worst part of the room was the pipes for the shower. Anytime I or anyone near me in other rooms showered the pipes in the wall rattled very loudly to the point that I showered as quickly as possible to avoid it. The saving grace was the bed which was incredibly comfortable with great linens and pillows. The food at breakfast and lunch was really yummy though expensive - but that's San Francisco for you.