Kris was an amazing host, he did his utmost to make our stay as good as it can get! We were a group of 5 visiting NYC, Kris was very flexible, helpful and full of good ideas what to do and where to go (thanks to him we saw a super off-broadway show, loved it!). His portable wifi made walking around really convenient.
The apartment is in a safe and residential area in Brooklyn, not as hip as Williamsburg or busy as Manhattan but completely decent. The A (and C) and G trains are a 10-15 min walk away, calculate about 40 min to go to Manhattan. A bus connects you to Williamsburg (and JFK AIRPORT).
The apartment itself is maybe not the newest, but for us it was good value for the price. Being 5, it was really convenient because it had two real sleeping rooms and a couch in the living room.