What a fantastic hotel i cant say enough.
I contacted the hotel weeks before we arrived & was put in contact with Galen from the front desk. We mustve exchanged about 10 emails about things to do etc. ON arrival he had bumped us up to a junior suite & had a package waiting for us at the hotel. This had maps of all the areas with areas marked where we shouldnt go. Things we could do & all sorts. Plus he advised us to buy a Muni passport which gives you unlimited travel on the various forms of public transport. This was a godsend. I wouldnt advise to drive in SF but use the various forms of transport including the streetcars & cable cars. The rest of the staff at the hotel were equally as nice constantly helping where they could. Joel who is the front desk manager even booked & printed out tickets for us for a show we were going to see in LA even though it had nothing to do with his hotel.
The rooms were great too, nice big flat screen tv, clean, huge bed too.
Location is perfect as you are on the doorstep of Union Square & Chinatown.
I would highly recommend this hotel.