"Mexican street tacos meet the Vegas Strip".
This places rivals some of the best taco joints in Mexico. Believe me, I've been to a lot of them.
I would call this a hidden gem (only because you don't know about it), but with the amount of reviews and the amount of people at any given time it's pretty well known. Don't be discouraged by the pictures of long lines, they turn out everything quick.
They have separate lines for different cuts of meat, so you might want to have someone else in your group stand in another line to get it all at the same time.
I would highly suggest Pastor (pork) and Asada (beef). You can chose from Flour or Corn tortillas. Don't forget to ask for everything on it! Also the Asada fries are amazing. You can even get a half order and any type of meat you want on top of the fries.