I stayed at Zack's for 2 nights. The room was okay, I knew it was going to be shared so I was prepared (and my roommate was the best I could have asked for!). The bathroom was very unclean when I arrived, but the second day it got cleaned very well. The common areas were great; big kitchen and living space. It took me about 30 minutes by car to get to the bay area of San Francisco. Overall a good stay, but a little bit expensive knowing it's outside of SF and having to share a room. The parking on the street is a bonus, although you do have to find a spot.