Pro - inexpensive. Excellent location. Quiet street, nice neighborhood, close to BART, stores, restaurants. Keypad convenient for checking-in any time. Private space, own bathroom. Mini-frig, microwave. Kymi responsive to my one request, is a nice person.
Con - it's an only partially-finished basement room. Heating system for house is in the room, walk through storage space to get into room. Unfinished window near ground level. If you are just sleeping there it's okay. For spending any time there I found it dark and unpleasant.