The best thing here is the grilled shrimp taco. It may be the single best food item in all of South Phoenix. But the carne asada burrito, the grilled shrimp burrito, and the breakfast burritos are all very good as well. Plus there's a whole section of the menu I have yet to try, with aguachiles, shrimp cocktail, and other seafood items.
If there is one complaint, it's that the drive-thru will take about five to ten minutes. Modern American culture has us trained to want everything now. Just be patient or call ahead.
This is a great new restaurant. If you like Mexican and are anywhere close to 17th Ave and Southern, give it a try.
Note: the fried shrimp burrito, while very good, has a lot of mayonnaise. Fair warning!