I've spent 8 days with my wife on Olga's apartment. Great location. I can't think on a better one. Lots of nice bars around and very close to the Washington Square, which is my favourite park in NYC.
The apartment is nice and quiet, but the building is a little bit older than I would like.
The host was very nice and everything went pretty well. Her boyfriend was kind enough to let us send stuff bought on Amazon to his place and then left on the apartment.