I really like biaggi's; the atmosphere in there is kind of a salving balm to the grody campus or slut-tacular downtown vibe. It's clean and more refined than most other places you'll find in champaign, with good service and a lot of edible dishes.
It's true what everyone else is saying; there's nothing impressive about the food. I've never had anything bad though, and I actually think the prices are highly reasonable given the amount and quality of food and the atmosphere in which it is presented.
You NEED a reservation for dinner if you are going to wait for less than an hour on the weekend.