The ever-analytical Norman Oder of Atlantic Yard Report discusses Park Slopes’s citing as one of the ten great nabes in the nation (by the American Planning Organization).

So the challenge is to harmonize the social needs of Brooklyn with the
virtues of a great neighborhood. These days the city tries to do that
through a rezoning–except when it lets the state override zoning, as with Atlantic Yards, allowing what is essentially a privately negotiated density bonus.