Ann and the hosts replied me very promptly with a lot of details to help me plan my trip in New York including comparisons between different options to get to the house from JFK. She's very responsive and there for you before, during and after the trip if you need any help.
The apartment itself is quite cozy with a very high ceiling that I like. It's just a 5-min walk to the station that can take you directly to the heart of Manhattan within 30-40 mins.