Busy but worth it. Homemade tortillas made in front of you. Asada and Adobada are really good.
Get in the line you want to order from (separated by animal, beef, pork...), order, pick up and go to a separate counter to pay. Not rocket science but a bit chaotic if you aren't used to this.
I wouldn't drive across town again for it, but if I'm ever down here again I'll come back