I went there twice in two days. Food was ok, I had the sandwiches and grape leaves. Prices are very reasonable for what you get and sandwiches are served pressed on a grill which done rarely these days. Taste was good but not great. I also had the meat and cheese pies, which also were ok. Larger pies were a bit expensive compared to other places I've had then in LA and other places but at least you get better price by the dozen.
Service was ok; no smile by anyone working there whatsoever (and so went two days and served by different people). If that's the only place in Phoenix, I wouldn't mind going again but I would try some of the other places in the area before I return there.
Grocery store is very big and you can find almost anything and prices are decent. They also have a sweets counter connected to the market and quality is good on most items.