We really loved the stay! At the time we booked (for the NYC Marathon), this was one of the best rates we found, and the apartment was in a FANTASTIC neighborhood, very quiet, and the apartment looked out onto the back yards, so was itself very quiet.
The apartment was super clean, cute, and while not huge, was a good size for NYC (and much less claustrophobic than typical hotel rooms).
The building entrance isn't fancy or particular promising, but it's certainly fine, and more importantly, the apartment is nice, and we really enjoyed our stay.
Incredibly convenient in terms of being < 5 minutes to Central Park, to the subway station, restaurants, and groceries/drug stores.
We would absolutely return!