I was brought here by some friends and have repeated gone back since. I normally get the chicken boti which is a spicy chicken cooked on a kebab. It's pretty fantastic. It's also super reasonably priced. You get an EXTREME amount of food for a decent price. My husband once ordered a chicken curry dish and they asked him full or half. Since he loves leftovers from this place he said full, it looked like it was literally a whole chicken! For like $13! It's amazing food too, that is completely unique to Phoenix. I know that Afghani food sounds like it might be extreme, but it's really good and not that crazy. I recommend starting with something simple like the Chicken Boti (if you like spicy) or the Chicken Mali Boti (if you don't) and getting crazier from there.
My only disappointment, they almost always sell out of baklava before I can get my hands on it!