Stayed for a month by myself. Landmark has a lot of very wonderful people working for them, they went out of their way to accommodate me in a few ways over the course of my trip and were very easy to get ahold of. The apartment can be noisy but it's in an active neighbourhood in a busy city so it was inevitable. Very close to the subway station, the neighbourhood at times was a bit scary especially by the BART but after staying for a while it was clear it's like that everywhere in central San Francisco, especially if you are relying on public transportation.