Three of us stayed at Sam's place for two weeks.
The neighbourhood was great, so close to Central Park and two subway stations. There were many great little eating and drinking spots within a few blocks. We always felt very safe in the neighbourhood.
Check in was a breeze and any questions were always responded to very promptly.
The apartment itself was lovely, very clean with everything you could want to make your stay very comfortable.
I would definitely recommend Sam's apartment.