Love the outdoor area here. They have a good selection of beer and a giant outdoor bar area. They also have a great tasting room inside for when it's cold or rainy.
The brewery tour is short but interesting (it's not a huge place after all). Their beers are decent, not the best in town, though. They offer seasonals and new brews on occasion.
As far as beer is concerned, there's much better out there in Madison. The outdoor space, however, is great.