I just ate here with my parents while driving trough Las Vegas.
Being Persian ourselves, we were hoping for some Persian fare, and this didn't quite meet our expectations. We ordered the number 10 beef combo (one skewer kubideh and one tenderloin) and weren't impressed with the taste, especially considering the price point. ($15!!)
My parents' first reaction was that this place isn't Persian but rather Arab, referring to the combination of spices they use. Arab recipes tend to use spices like cumin while Persian recipes lean heavily on onion.
We did really like the fresh baked bread and the two yogurts -- maast-o-khiar and maast-o-moosir -- the yogurt was creamy and flavorful.
Service was good. We got our food fairly quickly, and the staff was helpful and kind.
Overall, I give it 3-stars. Decent food, not superb. If you're Persian and are looking for Persian food, this probably won't satiate you. But if you're looking for just a decent meal, then you'll do ok.