A very nice place with a very nice host! Saw Charlotte only once at my arrival (so we had our privacy without restriction) but I could reach her anytime by AirBnB messenger and always received a helpful answer immediatly.
By the J train you'll be in a few minutes in Williamsburg and just a few minutes later in downtown Manhattan. So you definately don't make a mistake and get further more an interesting insight in a lively and authentic part of Brooklyn that not every tourist is able to get. Thumbs up!