Fun, spacious bar in a good location. Excellent beer selection with relatively reasonable prices (on par for the the Upper East Side, at least). The crowd at Stumble Inn is usually large but never gets unbearable, and the patrons, while young, are mostly just looking to have a good time without being pretentious or too raucous which is always a plus. The bartenders are relatively friendly and quite capable even when bombarded with orders, and the bouncers are likewise relatively friendly and not overbearing at all. Overall a good time, although I personally preferred the decor of the place when it was Mo's Carribean.
Pros: Service, Crowd, Music, Beer Pong
Cons: Ambience was better as Mo's Carribean