This is technically an "Authorized Campus Store" as opposed to an Apple-owned store. So, this location is a joint operation between UIUC and Apple.
Even so, the service is exactly the same as you would find in an Apple-owned store. This store has a full selection of MacBooks, iPhones, and other Apple products. The service is fast and friendly, and they even allow you to make computer repair reservations online!
Update (3/11/11):
The Illini Tech Center carries Macs, iPods, iPads, and software (but not iPhones). They are owned by Illini Media and aren't part of the University.