We stayed in Jennifer's apartment as a family of 4 (with 2 children aged 13/14) for a holiday visit to New York, and enjoyed both the apartment and the neighbourhood. The apartment may not be very spacious or light, but the futon bed sleeps well and is practical (and so are the folding table and chairs). If you are mostly exploring NY city during the day, the apartment offers all you need. It is indeed quite clean, and also cool when the outside temperature is high. Finally, Jennifer is a very fast responder to messages and offers space to store your luggage on your last day, which was much appreciated.