The airport wasn't too big, making it easy to get around. I really liked the cozy seating, especially in the fireplace nook. Comfy.
The bathrooms were clean and free from malodorous fumes.
There's restaurants and coffee shops. If you'd like to try a local specialty, fried cheese curds are available in the restaurants. Also, the little airport stores have cheese curds and cheese in the shape of cows and the state of Wisconsin.
The only gripe I have is the skimpiness of available outlets. Come on guys, my phone is dying here.