I loved to stay at kimberly's house!
I stayed for 18 days and they give me all the suport and answer me very fast! The room is very confortable and the bathroom was clean every day, of course that if you share the bathroom you have to depend of the good sense of the others, but i didn't have any problems!
I recommend this house for people that want a nice and confort room to stay and there's no problem in share the bathroom.
The house is very close to a bus station that takes you to the center, so for me it was easy to stay here and visit the center of SF.