San Francisco is an expensive place, so this is the cheapest place I could find which is a hostel. As with most hostels, people are pretty nice and I made some new friends even though I only stayed 1 night.
The biggest problem is that the room I stayed in was facing the road, and opposite the place was a popular club which was loud up until the wee hours of the night. Thankfully I was able to get to sleep pretty fast.