This was my 2nd 4-weeks' stay in Gisele's apartment, and I again had a great experience.
Check-in / check-out is extremely easy and efficient. The apartment is very clean on arrival, extra bedsheets and towels.
I really like the apartment: feels quite spacious thanks to the large windows in the living room. The late morning sun through them was very appreciated. Terrace was a nice addition (even though I enjoyed it more during my summer stay).
The laundry room free of charge in the basement is a very big plus for long stays.
All in all, it really feels like being home.
If I have to give one negative point, that would be for the couch in the living room which isn't the most comfortable. But it didn't really affect my stay and experience.
As for the neighborhood, it is very quiet. Right by the Riverside park, and just 5 minutes walk from the 72nd subway station.
I strongly recommend this apartment, and will definitely look for it when I come back in NYC.