If you choose Qdoba over Chipotle, clearly you are not in the right frame of mind. The food is palatable, but the preparation can be a hit or miss. The burritos are prepared in a hurried way by indifferent employees. I asked the head employee once(might have been the manager) to drain the beans, and I was told he couldn't do that as he did not have time. The lackadaisical attitude of employees is not welcoming to say the very least. And this judgement is not a hurried one, but rather is the result of repeated 'unintended' friday night walk-ins.
The ambiance and niceties set aside, the food itself is average with no inviting characteristics. The rice and beans lack a zing, and salsa's don't help fix that. The flour tortillas aren't any better either. It's maybe due to poor quality of raw ingredients.
The ever empty tables on the 2nd floor are no irony. Even for being in the middle of cornfields, Champaign has numerous other places offering far better food.