Well, the tacos are a fantastic deal and I can put up with a bit of quirkiness for a good, healthy, and well-priced meal. I agree the vibe sometimes detracts a bit, but like, I can't even get a cheaper (sub-par) lunch for $5 at Subway, which has far crappier 'vibe', IMO.
I hope they learn that people want more good food value and less attitude and 'authentic principles', and stick around for a while.