I will have to be honest; this place would easily be a 2-star establishment if it wasn't for their awesome rooftop terrace! The rooftop allowed for a fun experience, and includes cornhole. The downstairs has a shuffleboard and darts, which also added to the night.
Gin Mill, I want to like you. However, I've had your local brews on two separate occasions, and on both occasions the beers tasted bitter and stale. I suppose the 'run of the [gin] mill' crowd doesn't dig local draughts, but that doesn't excuse you from checking on the kegs every once in a while!
All in all, 3 Stars.