Great stay with a great host. Mary’s accomodation is spacious and located in a great, safe area of San Francisco with easy access to cable cars down to the landmark areas.
Mary herself is extremely helpful and kind natured. She will even provide a ride to the airport for the same amount you would a taxi or rideshare.
Only things to expect with the stay are a steep flight of stairs to contend with if staying on the top floor, though Mary jumps at the opportunity to assist, and quite a noisy stretch of road outside, particularly in the morning. No need for an alarm!
Would definitely recommend and would stay again.