I love Chipotle. Here is some excellent advice about how to maximize your burrito order. (I say carnitas and pinto beans, though, instead of steak/barbacoa and black beans.)
On a related note, I'm spending some time with some 20-somethings for a fundraising campaign. One of these kids used to work at a Chipotle, but refused to eat there because, he complained, Chipotle's food is very very bad for your health since they put salt in everything (in the meat, in the beans, in the sauces, etc). His complaint seemed odd to me since he was smoking as he described this. But it seemed all the odder when, later in the day, I watched him shake salt onto a pizza.