This is our go-to place for breakfast in Champaign. Unfortunately, it's just about everyone else's go-to place also, because it's good and we have a lack of good places in the area.
If you come on weekdays the crowd is substantially less, but even today (Friday late morning) it was still pretty crowded with a short wait for a table of four. Weekends you'd better be an early riser, or like eating breakfast late, because it's consistently crowded with full waiting room + groups sitting outside the door.
My favorite is the Farmer's Omelette. It's sausage, cheese, mushrooms, red peppers, green peppers, onions and it's a pretty big omelet. It comes with 3 pancakes as well, so the usual plan is eat the pancakes and about half the omelet, and take the rest home. It runs about $12, so all in all you end up getting 1.5 - 2 meals out of it, depending on your appetite. My wife frequently gets the Ham and Cheese Omelette and she says it's very good.
My girls like the bacon pancakes and the chocolate chip pancakes. The chocolate chip pancakes come with whipped cream and chocolate drizzle, so it's more like a dessert than a breakfast.
They have fresh squeezed orange juice, but that's the source of my "minus 1 star." The quality varies, and a large OJ is $5. It's usually pretty good, but that's Las Vegas/Chicago pricing folks. Today the juice was pretty weak, so that made the price thing gnaw at me even more.
Today our two omelette meals (my youngest split one with my wife), a chocolate chip pancakes, 2 large juice, 1 large chocolate milk (large ~= 12 oz), and a coffee ran us $46+tip. That's pretty steep for breakfast, considering that about $15 of that was just drinks alone.
We have a lack of good choices for sit-down breakfast in the area. Even with the mentioned beverage price issues, it's still the best choice in the area that we've found so far.