What a diamond in the rough! Great place. Will definitely be back. Being a country kid, I was apprehensive about what I was getting into. Located just around the corner from Union Square, the location seemed great on a map, but when I got there I was definitely wondering about quality. Don't let the old, cramped, claustrophobic building fool you. The room was nice, the bed was comfortable, and, (most importantly) the bathroom was clean! It was definitely worth splurging on a private bathroom. Having a TV in the room was an unexpected bonus.
There is no A/C, so it was a little stuffy when I first arrived, but I opened up a window and turned on the ceiling fan. It cooled down quickly, and the temperature was never an issue...although I can imagine extra warm days may get a little uncomfortable, but it's SF, how often does that happen?
All in all, what a great place!