Noisy, poor service - missed wake up call
The hotel is on Union Square, so it's expected to be noisy, but because there is no air conditioning, you have to sleep with the windows open, and the noise is terrible, even at the back of the hotel. Also, the walls are very thin, so you hear every little noise in the rooms around you. We were on the uppermost floor, and the noise was still so bad that we could barely sleep. The beds are also very noisy. If your sleep mate moves the slightest bit in the night, the bed creaks terribly.
We had a very early flight out of San Francisco and requested a 3:40am wake up call, but never got the wake up call, so if you're staying here, be sure to use the wake up call as a back up only.
The front desk clerk was very nice to us, which made up for the bell boy's bad attitude.