The apartment was clean and the extra amenities (chocolates, extra jams, teas, coffees, toothpaste etc) were a lovely surprise. It had no stairs which made it ideal with our young daughter. The host VERY kindly provided us with a cot for our daughter which made our stay even better. The trolley cars leave and drop off from a very short walk away which saved our legs the walk up the hill. Really quick walk to Fishermans Wharf- but the walk home is pretty steep so we preferred the trolley car. I would recommend buying a transport pass for your whole stay from the depots at the end of the trolley car line ($7 per ride or $31 for 3 days unlimited buses, trams, trolleys etc). The neighbourhood was great with some nice restaurants and a small supermarket within a minutes walk. The view from the street outside is lovely. There is no street noise in the apartment.
The only negative for us was the noise of the people in the apartment above- but that's to be expected in a city like San Fran.