I also always feel at Chipotle like I get the burnt chicken at the very bottom of the bin, right before they change it out.
My other real gripe with Chipotle and their inconsistency is in the meat portion. I always get extra chicken, but I've noticed, if I tell them I want extra chicken up front, I get two VERY light scoops of chicken, which probably is only like 10-20% extra over someone who doesn't say extra chicken, and gets a much bigger scoopful. Now I've learned that you have to let them give you a scoop like normal, and THEN tell them you want extra.
I don't know, I mean it is pretty good, but I just think it's overrated; you'd never see a line out the door at Taco Bell, people wouldn't stand for it (pun intended).