Compared to other mass-market burritos, Chipotle sits at the top. On the plus side, Chipotle has a nice consistent recipe that far exceeds the assembly-line slopping of unrelated ingredients on a tortilla that passes for a burrito at other places. They have a very nice, and unique, choice of salsa and the cilantro rice is tasty. My only complaint about the chipotle burrito is that it is a bit dry and there is too much rice. Of course since the rice is really good, it isn't a huge problem to have your last few bites be rice. But, a little less wouldn't be a bad thing.
Chipotle doesn't live up to the standards of some of the local non-chain burrito shops, but it far exceeds every other mass-market burrito.