After moving to Calgary, I thought I can add a few details to my original review,
We dined here in a group of 4. The restaurant was empty and we were the only customers.
We had the koobideh, herb stew and the barley soup. All of them were disappointing and way below average for Iranian food. However, the biggest disappointment was the service.
We were "lucky" enough to be served by the owner himself. He was always interrupting us and asking us random question. Then he switched to cursing and bad mouthing other Persian restaurants in town. So not professional. And finally when my friend asked for a piece of lime for the barley soup, the owner made fun of him and told him it is not going to taste good with lime!!!!!!!!! (It actually taste very good with some lime)
In conclusion, totally not recommended, there are much better options for Iranian food in Calgary.