I stayed in Kinas Airbnb for 2 months. Kinas Airbnb is in the safest area i know in San Francisco. There are no homeless people. Also the area was very quiet. You can get to the public transportation (KT) within a few minutes. San Francisco is a very expensive city, but the price for the airbnb was very good for this nice area. I would recommend Kinas Airbnb!