Went there for my birthday (a lot different birthday experience than the one for El Tango for another birthday member). It was a Wednesday night about 8:30 and there was a 30 minute wait for a table. the place was hopping with a fairly big hipster crowd. The weather was great and we waited outside. Once we were seated our server was fairly prompt with our order. the three of us had a mix of tacos and most of them were very good. Dirty taco was pretty darn good, as was the chorizo taco. For me the only taco that i didn't care for was one i created with pineapple based salso. Not their fault, i just didn't care for the salsa. But the place was pretty nifty looking inside, the clientele definitely had a high hipster quotient. I am definitely now in the hipster age bracket (I also am not necessarily a fan of hipsters), but everyone was very solid. The staff was okay, not great or highly personable, but professional enough that it didn't put any negative spin on my experience. The ambiance was very good. I would think this place really hops on a weekend night.
If you do get one of their hotter tacos make sure to have plenty of liquid beverages around because some of the tacos are very hot.
I definitely would go there again. I didn't have a margarita this time, but next time i go i will give it a shot.