Very clean and comfortable unit - feels like a nice hotel room. It allows for easy coming and going without bothering the hosts, and because of the busy nature of my visit, contact with them was unnecessary. Although on a busy street, the unit is in the back and insulated from street noise. Public transportation is really convenient. Also easy mile walk to UCSF Parnassus campus (or easy muni train ride from nearby stop.) I would definitively choose to stay here the next time I’m in SF.