The Champaign Public Library is the best public library that I have ever seen. It has a huge selection of books, CD's, movies, etc and also access to computers, printing, copying, scanning, etc that is almost always available.
The hours are a little strange for me on Thursday and Friday by closing at 6pm and the weekend could have more open hours, but really this is the only kind of negative about it.
The staff has always been helpful if I had any questions or issues checking out items or reserving items. The online app is also great for quickly checking your account or renewing items. Their renewal policy is also great.
If you live in Champaign I highly recommend setting up an account and utilizing the great resources the public library has to offer!