I think it's only appropriate to preface my review by saying I'm generally not a big fan of the wiener. I play for the other team (by that I mean burgers). However, sometimes nothing will hit the spot like a great hot dog. Now I'm not actually sure that I've ever had a really GREAT hot dog like the ones people always talk about in NYC or places like that but I think I have a good handle on what I would consider a good dog if I ever found one.
The Hot Dog Diner gets close. Not quite incredible but is on the right track. Their ideas and specialty hot dogs are very original and taste pretty dang good. My gripe is the actual meat between the buns. Perhaps my perception is off but it seems to me that they aren't using the most high quality wieners. They're also not as big as I expected. I prefer larger, heartier links. Now to be fair, the prices are reflective of their smaller dogs but I would pay more for a real, better quality sausage.
My kids loved the place and I thought it was pretty good for what it was. It's a hot dog so I wasn't expecting an orgasmic culinary experience.