Unit was quiet (no street noise when you're in the bedroom) and in a great location (walkable to many subway lines, and 2min from the park). AC kept the place cool during the height of summer. Rick was helpful and responsive.
Only minor gripe is that noise seems to travel downstairs from the apartment above. There was a family with a small child staying there, and we could hear their child crying at night and stomping around during the day. Not a major deal breaker - I guess most/all brownstone apartments in NYC would have this problem anyway.
Would stay again!