Simply some of the best burgers around. I have tried a number of the burgers on the menu, and they are always cooked as ordered and topped with all sorts of interesting toppings. You can always customize a burger with the various standard toppings (and the not-so-standard - garlic sauce? Yum!) or order one of the named concoctions right off the menu. The onion rings are better than average and don't usually fall apart on you (my pet peeve).
The staff is friendly, and the service prompt and relatively quick. You might have to wait a bit for a table and a slight bit for your food if the place is packed. That will happen before or after a Wisconsin Hockey or Basketball game or any other event held at the Kohl Center. Some friends and I always stop here before going to the State Basketball Championships, and we are usually glad we did.