I've been there with my girlfriend and all that I can say is: very good experience, we felt like right at home. The apartment was an excellent starting point for us for discovering Manhattan and it's definitely something I could get used to: the piano, the kitchen, the bathroom, the washing machine etc. were all good and very usable. We had practically no issues during our stay. (The only minor issue was with the internet connection, which is probably Verizon's fault anyway and we got a backup solution very quickly.) We really appreciated that our caretaker was always available for answering our questions.

I can't compare it with other places (this was my first time in NYC), but it's a fairly calm place and it satisfied our needs pretty well, so I can totally recommend it.