Love it! This place is a '50s style diner with undeniable authenticity, decorated with dozens of pieces of Davidson memorabilia. It's been an institution for years, and it definitely has that old time charm, with wooden booths and a snack bar. The number one reason go come here is their hamburger, which is about as great a burger you're going to get. Their milkshakes are also great. You can also order beer with your lunch, which is an unexpected but welcome surprise. You can also buy candy at the cashier, if that strikes you as a good dessert.
My only complaint is that they don't take credit or debit cards, which is a bit inconvenient, and that they close at 8 in the evening (although really this is a lunch place, so it's not that big a deal).