The size, location, and parking here were great - very central location, we felt very safe, and lots of places to walk to. The size was perfect for 2 people, no more I would say. Parking was a lifesaver!
Part of the unit is pretty much on street level and I will note that it is pretty loud (normal for SF) - the cable car runs right on Hyde, where the bedroom windows look out onto, so you get that noise from about 7am-11pm. Also, the upstairs neighbor plays very loud music at all hours they are home, luckily you can't hear too much from the bedroom.