Although people on the board have already mentioned it, I want to put in another plug for Noon-o-Kebab, which I just visited this weekend and had an excellent experience there. We went with an Afghan friend who claims that much of Chicago's Persian community generally prefers this place over Reza's, and it was bustling, full of Persian families and neighborhood residents. The atmosphere is nice and the host was very friendly, even providing us with an extra appetizer on the house.
We started out sharing an appetizer of "Kesh" (the full name is longer than this but I can't remember it off the top of my head) which is a kind of eggplant/sour cream dish; this was definitely not the best part of the meal, and I would recommend Cafe Suron's version of this dish much more highly. The main courses, however, were excellent, including deliciously tender and flavorful kebabs; one of us had the chicken, another the Koubideh, and another a combination of the sultani and something else. The chicken and the sultani kebabs really stood out, and the restaurant's dill rice also was one of the best versions I've had. As part of my combo I also had the Ghormeh Sabzi, a kind of spinach, red bean, and meat stew, which was very tasty with some unusual spices, and very filling. Overall, the meal was delicious, and the kebabs are some of the best of this sort around, plus the atmosphere of the restaurant is lively yet intimate, and the overall experience is a far cry above Reza's in terms of consistency and attention to detail. Cafe Suron may do certain kinds of dishes better, but I would highly recommend noon-o-kebab as one of the best finds in albany park and a much better option for Persian cuisine than Reza's.
Noon-o-Kebab is on Kedzie and Leland.