Okay
Stayed with wife and kids. We took two rooms. We usually stay at the Fairmont on Nob Hill. Rooms were up to date and adequate size in our section, which is the newer rear building. Location is good if you like the hussle and bustle of Union square at your feet. Check-in took way too long - I don't know why. Also, at check-in I asked if any upgrades were available for my wife and my room, and was told we could be upgraded for additional $20/night. I took it, and was disappointed to find it was identical to the un-upgraded room my kids had except it was eight floors higher (20th floor). If the added elevation had provided a superior view I could understand; however, the view from the newer "tower" is not great as it does not look down on Union square even if it's facing the square because the original building is in the way. All staff were helpful and friendly. I also liked their lobby-lounge where you can comfortably sit with your laptop. Service there was a bit slow too though.