Carlos O Briens is an institution! I have been eating there for over twenty years. I have seen the same manager and bartender for at least 14 years - maybe they've been there longer- I dunno. But what I do know is that this place is great. The food is consistent - everything tastes exactly the same as it did 20 years ago, the portions are still just as big as always, and the prices are still very reasonable. They have the best shredded beef taco I have ever eaten. I am a third generation Phoenix native and have eaten at all the other places - Macayos, Garcias, Matador, La Canasta, Carolinas, Tee Pee, La Tolteca, Oaxaca, and all the various taco wagon type joints as well. Carlos O Briens is the place I come back to time and time again. It's the Durant's of valley mexican food.