We had an excellent three day stay here - the hosts were super responsive and we had no issues whatsoever.
The area is entirely walkable - the subway is right up the street, Key Foods for groceries is just under a 10 minute walk, breakfast bagels a block away at Penny House Cafe, tons of restaurants and bars, and we walked to the Nets game at Barclays one night (and they beat the Cavs, which was a plus).
Our only issue was the noise outside, but there's a white noise speaker and earplugs next to the bed to help you out.
Hope to be staying here again next time we're in Brooklyn.