Stayed here for one night while visiting SOMA because it was convenient to the bars I was going to and had reasonable parking rates. The building is old but in good condition, with plenty of parking. There was even an elevator which I was surprised about. The room was more than adequate and had a refrigerator & microwave. Again, it was old, but very clean.
The neighborhood it's in suffers from the usual problems in urban areas, although it's been cleaned up a lot over the past couple of years. If you're not intimidated by city life you'll have no problems walking around here. There are plenty of markets and restaurants within a couple of blocks, and it's a short walk to many of the more popular bars in SOMA, making it very convenient.
I'll definitely be staying here again on my next trip.