We didn't have a chance to meet Jason personally. However, the communication was always quick and helpful, especially the long list of local knowledge. We arrived half an hour earlier and fortunately Jason's mother welcomed us and opened the door. She was very kind and had interesting travel story as well. One thing we'd like to inform the first comer to SF (or to the US like us) is that the nearest BART station, the 16th and Mission, feels a bit unsafe, especially if you are a single female traveller. The actual location of his place is a short walk away from lively and 'hip' part of Mission, and might feel a bit too quiet to walk by yourself in the night time. Nothing happened to us (one time a passing by homeless lady said cheerful greeting to us) and we kept using BART without any problem. Jason's place has great charms, especially the original wooden floor boards and wooden panel walls and luxurious kitchen. The second bathroom on the ground level was excellent! We also enjoyed the great cafes and restaurants around the Mission and had an excellent time.