Reasonable rooms, great location
I stayed at this hotel because it was the location of a recent conference that I was attending for business in San Francisco. I was torn between giving it a rating of 3 or 4 stars, but since there was nothing that particularly stood out as being amazing about the hotel, I decided to go with three. However, it is a "high 3" (as we used to say in performance appraisals at a previous employer).
You really can't beat the location of this hotel. We took BART to the Powell Street station and walked the 3 blocks to the hotel in about 5 minutes. It was much easier than I was expecting and saved a ton of money (compared to a taxi or SuperShuttle). 
The hotel lobby is pretty and quite spacious and the gentleman working at the concierge desk was very helpful when we asked him for MUNI directions & tickets. There were plenty of spaces to sit down and relax in the lobby; though the queuing area for the line was a bit crowded.
Our room was a corner 2-room suite, which was nice because there were 3 of us rooming together for the conference. The furniture was fairly standard, the full-size beds were very comfy, and the TVs were new and plenty large for the size of our room. However the closet in the bedroom was very awkwardly located right next to a bed, so close that you could not walk between them and therefore the closet was basically useless. The restroom fixtures were also fine, though there was not a fan in the bath and the wallpaper was peeling in some areas.
All in all, I would return to this hotel if the rate was right because the location is so fantastic. If the rate was too high, I would investigate other options because the rooms were fairly standard.