A fab place and great use of basement space - it suited us perfectly. We had an excellent time at Emily and Sam's Airbnb - it was a short walk to the metro and had plenty of good bars/cafes/restaurants within an easy walk. And Prospect Park was a great place to go running in the morning too.
For light sleepers it's worth noting that the central heating was a bit rowdy through the night, but we got used to it and appreciated that the place was nice and warm as it was getting very cold out!
We didn't meet the hosts, but they were very responsive and friendly in their comms. We'd be very happy to stay again and it's great value for a New York stay :)