Okay, I've gone here a few more times now, and I can tell you this: get the "classic."
The other burritos are just... I dunno, they're not right. The Cajun one hardly tasted Cajun at all, the Mediterranean was uninteresting as well, but the classic tasted wondrous.
The only thing that made me sad is that after 10AM you can't get chorizo. Lame.