This is a true regional comedy. Folks from south-central Pennsylvania and Western Maryland will feel right at home with the characters. Sure, the writing's a bit stilted, and the actors are a bit more like stage actors than screen (because a few are primarily stage actors), but the film lives on it's heart more than anything.
Worth a watch if you're from the region or know the people from "round here." If you're not, it might not ring as true.