We enjoyed our stay at Fa's. The bathroom is great, everything was very clean and the shared kitchen is spacious and well equipped. The safabed was not that comfortable, but it worked for a few days. The walls are a bit thin but it was possible to sleep.
The area was great, a lot of amazing chinese food! The place is also well connected to public transport. It is a safe neighborhood. In October we didnt have a single minute without fog though - while the sun was shining other places in SF. Definitely interesting experience!