This place gets very crowded and seems to be really popular but I find it to be a bit overhyped, probably because of where it is located. Not to say that the tacos are NOT delicious, because they very much are, but to me this place feels like a lot of others in the city. I don't feel compelled to come back, only if I were in the area.
I would recommend the carnita taco and the one with crispy chicken. Spicy is definitely spicy with the jalapenos they put it on it. My friend got their specialty appetizer of corn on the cob which I would be interested to try if I come back.
Ambiance is a bit dark (what restaurant isn't nowadays though) and loud! Don't come here expecting to have any intimate conversations. Decor seems to be a cross between grunge and trendy (is that even a good description? hah).