As a "burger conneisuerur (sp)," I have to vote this one the best in Madison. Out of the way and not on the radar of most people, looks like a divey hole in the wall. The best is the Blue Moon Burger, but the mushroom swiss is delicious too. If I had one suggestion, it'd be more bun variety with customer option. I like a softer bun in general so that the patty flavor overwhelms everything else.