Just off Main Street, you'll find past an apartment building along 7th street, the Main Street Brewing Company. The building was a former warehouse and they have kept the high ceiling and large windows. With a giant tasting room, there should always be a place to sit. Their growler filling station is next door, and also very large.
Their selection of beers was small, and seemed a little more pricey than some of the other breweries we've visited. They only had 6 beers to pick from. 3 regular and 3 casks (being much the same style of beer) However, it was a bit fun to compare. And with no surprise the cask beers seemed to be the favorites.
Try the their cask of golden Kellerbier (a German Style "cellar beer") it was the pick of our table.