I ran a search, and am really surprised that there were no posts about this truck originally found on Midtown Lunch - El Rey del Sabor. http://midtownlunch.com/blog/2008/09/...
According to that link, the cook normally works at Los Dados, a place I've never heard of.
I've been so happy for this cart's existence in the wasteland of upper East Midtown. I go once a week (actually twice the first week) and have had a decent amount of the offerings. Have only tried the al pastor once, and decided it may not be one of their specialities...had it in taco form and wasn't super into it. Normally it's one of my favorite fillings. But have been thrilled with the tortas (have had both "bistec" which was actually shredded and the carne enchilada) and sopes (not as good as Coatzingo but...come on). Quesadillas and huaraches very tasty as well...huaraches made to order sometimes, but I guess other times they have them ready. Tamales (chicken only) are good flavor, not great texture, but hit a craving. Pastelios well, they're fried so they're yummy, but I probably wouldn't feel the need to have them often. On the upside, fried means they are made fresh while baked ones would be brought from home.
Have not had the burritos or enchiladas but my coworkers have praised them. Other coworkers have seemed underwhelmed by the tacos but then I'll see people in line buying 4-5 at once.
Not everything on the menu is actually available now but I'm sure they have plans. Looking forward to the flor de calabaza quesadillas.
Anyway, felt like throwing in some praise here...have sometimes seen big lines here, but often like today just a couple people (it was 2pm though, maybe they were busy earlier). Want to make sure they do well and stick around!