Finally went and was not disappointed.
The burgers are very good - juicy and flavorful. I got the one with all the different kinds of cheese (I forgot the name) and it was delicious. The cheese curds were also fantastic - gooey, not overly battered and up there with some of my faves.
The atmosphere was nice, kind of reminded me of Avenue Bar or something. Really nice waitress who knew we were in a rush and was very accommodating.
There are other interesting looking menu items but sadly I feel like it's sacrilegious to come and not get a burger, so I may never try one...