When I was checking in, Art was wating for us at the entrance of the apt. He has shown us all the detailed information of the apartment. He was very kind. Also, the host provided us a plenty of water, paper towels, shampoo, conditioner, soap, lotions and etc. We didn't have to buy anything of them for a whole month.
At the lobby, there is 24hour security you have to pass through, and if you don't have the key, you can't use the elevator. It is a very safe big apartment building.
Also this apt building is located on Bush which is great walking distance between Market st. and Marina area. The location of the unit is opposite side of the street so you can't hear the street noise. I enjoyed my stay very much.