Carlos O'Brian's has been a favorite of mine since moving to phoenix. The food is very flavorful, and the portions are large especially for the price. My personal favorite is the Pollo Fundido. It's an explosion of flavor. They also make great margaritas. Another plus is they still give you chips and salsa for pick up orders. Also it's close to the Point Hilton resort, so definately a must visit place for travelers staying in the area look for great Mexican food.