Stopped here to get gas on the drive back from Iowa City to Chicago and popped inside to use the restroom. They tout themselves as having the cleanest bathrooms, and it really was pretty clean. :) The store inside was also quite large, with a big selection of snacks, fresh produce, doughnuts, drinks, etc. for sale. Air isn’t free. It’s a dollar in quarters only, or $ 1.50 if you use credit card.