My friend and I stayed w chan at his apartment during a weekend in July. He is a great host and really makes everybody feel at home. He is also a local of the mission for the past 20+ years so he can be a great guide for the area.
The apartment is located very centrally in mission and if that's the area you're interested in this is ideal. A bit far from other parts of San Francisco but everything is easily accessible through public transportation.
We have a two-bed room, everything was clean and organized, the only issue we had was that there were no windows and the room can be quiet warm and stuffy during summer. Other than that the house is very clean and organized and the other guests were also very quiet and respectful.