I live in Texas (upper Mexico) so I can, and do, eat great Tex-Mex cuisine
all the time. This includes having it prepared at home, and believe me, my wife is a culinary expert. Her homemade salsa is unbelievable;
Mexican people pay her money to make it for them.
That being said... I eat at Chipotle, and I think it's great. The meat is
braised (first seared and then cooked very slowly in a covered pot); you can customize your fixins; you get your order very quickly;
and you can get a beer. And Mexican food just ain't right without a beer.