I stayed at Thuy's place for 2.5 weeks during a short trip to San Francisco. Her place was exactly what we needed. It was spacious and clean, located in a quiet neighborhood. Thuy was a great host and a very proactive communicator.
For those unfamiliar with SF, the Excelsior (where this Airbnb is located) is on the southern side of the city, outside of the Mission. However, it's still pretty convenient to get downtown, since Thuy's place is located less than a mile away from a BART station.