For anyone coming to Iowa City: you've made a great choice!
No, this is not the biggest place in the world, but in this case, size does not = everything, lol! This place has a lot to offer, especially for a town its size in the Midwest. While downtown caters mostly to the younger crowd, there are some really cool places that are more laid back--more "grad student." If you live close to downtown/campus, all the necessities are a few blocks walk away. The university busing system is free, and the city busing system also offers a free shuttle with a limited route near the downtown/campus area.
Cedar Rapids is the closet airport, but Chicago is only about a 3 hr. drive from here, and St. Louis is about 3.5.
I've really enjoyed my time here, and while I'm thrilled to be leaving, I will miss this place a lot!
P.S. Football Saturdays here are the shit!