You must try these burgers.
There simply is nothing that compares to this in the MKE area. I kid you not, you either have to drive to Kansas; or find a restaurant that, if you are reading this review, you cannot afford. The most expensive burger I think was $7 WITH fresh-cut side of fries and a pickle.
Grass-fed beef tastes much better. You will pay a fortune in restaurants that serve this great meat; but at this place, it is maybe a buck or two more than national fast food chains (MD's and BK's). Great fries and help yourself drinks (free refills, or at least they didn't stop me from doing so) and when you are done eating hop across the street and play some retro PacMan or Breakout at Koppa's deli.