We really enjoyed Jacks Inn because it was more of a locals spot than a tourist restaurant or destination. We went for breakfast and it felt like you were visiting someone's house and they had you come in for a hot meal. The inside isn't the cleanest, and they aren't trying to impress with ambience, but I think that adds to the local diner appeal. The food was hot and good and I would recommend.
Tip: They ONLY take cash!