You know how you always have to scan the room at Mexican restaurants to find someone -- anyone -- to bring you more? That's not a problem at Nuevo Acapulco, where tortilla chips are replenished before you get to the bottom of the bowl and drinks are quickly refilled. The genial and swift staffers never seem to get flustered. If you don't know the difference between a relleno and a chalupa, they take the time to tell you. Want refried beans instead of meat in your tacos? No problemo.