Very Bad Area
The hotel is not expensive and in the city center, I booked it during my trip all around the USA thinking it was a good deal.
When we arrived we realized that that area, even if very central, is one of the most dangerous in S. Francisco.
The hotel and rooms are very basic but they seemed clean, the staff was nice.
The problem is that the area is full of homeless, prostitutes, alchool and drug addicted people that keep on stopping you asking for money (at least this is what happened to us).
However, the part we disliked the most is that elevators that bring you to the rooms floors are on the street, even if they work only with the magnetic room card we didn't feel safe, anybody could potentuially and easily access your room's door, moreover, during our (1 night) stay someone went into the car park and broke the glass of a hotel guest car (car park entrance is open on the street as well).
So my opinion is: there is nothing bad against the rooms or the staff, but if you are a tourist, which means walking with money, camera etc etc this is not the right place to stay in S.Francisco. After one night we left and went too Fisherman's wharf, even if it is very touristic, it is safe and we enjoyed our stay without any worry.