My daughter and I stayed in this apt and we loved it. I have rented apartments in several other large cities: Manhattan, Chicago and Boston. This apt was definitely the best. It's much larger than other city rentals, plus it has a washer and dryer which is very rare (Mike also had laundry detergent there for your use). Also for a city rental we were pleasantly surprised that there really was not much noise.
The apt was very clean, kitchen was well equipped with everything including paper towels and dish soap. A few reviewers have mentioned that there is no coffee maker just a coffee press. (I goggled how to use a coffee press which was very easy and my coffee was just as good). The bed was very comfortable and the sheets and towels were good quality. There are 3 flights of stairs but it really was not a big deal especially after navigating the hills in San Francisco.
The location is fantastic, 2 of the 3 cable car lines are right there on Mason Street. We used the 2 Clipper Cards everyday which saved us a lot of money. My daughter loved riding the cable cars and we rode them several times each day! The apt is on the edge of China Town and the Nob Hill Area, both are great neighborhoods to explore and have wonderful restaurants.
Mike was also very easy to work with and I will definitely try to stay here on my next visit to San Fran.