This place is a great bargain for people flying into SFO. It is easily and quickly accessible from the airport and offers a more affordable place to stay in an area where prices are high. The place is quite comfortable and the host is very nice and responds quickly to messages. While the address is in line with the airport runways we didn't have too many planes going by overhead.
We stayed in the ground floor apartment, just under the upstairs apartment. For those who are sensitive sleepers you might want to bring a pair of earplugs. The sound insulation between the upstairs apartment and the lower apartment is very minimal. When we were there the upstairs neighbors, presumably jet lagged like us, got up at 4-5 am. Downstairs you hear all the footsteps very clearly, furniture being moved, indistinct voices and the like. It's a plus if your travel has you feeling a bit too isolated from others. It might be a minus if you are looking for deep quiet to rest.
We would definitely consider staying here again.