Good basic inexpensive Mexican food. I usually order the simple stuff - tacos al pastor or carnitas and then split a plate of rice and beans with the spouse who eats much further off the menu. Inexpensive, tasty, pretty much all you could want, especially for a lunch or light dinner. There isn't much in a simple taco so it lives or dies (so to speak) on the quality of the ingredients and their meats are fantastic.
Can be very crowded at lunch time and parking is minimal, particularly since Phoenix is tearing up the streets.