Being in Regina Sask and of Ukrainian descent, I can tell you the variance of quality etc in perogies can be amazing. The best are, of course, home made or by those who really care. Like my grandmother who would spend hours making authentic Ukrainian dishes. Her perogies were legend. Ingredients ranged from cheese and potatoes to mixtures of meat, cheese, potatoes, vegetables and the desert ones had cherries, blueberries, mincemeat etc. They were spectacular. My parents both made cabbage rolls, buckwheat, borscht and other dishes. There's some Ukrainian restaurants around but honestly, they really don't measure up to what I got used to. Funny thing, the worst perogies I've had were at a Ukrainian festival. There it was quantity over quality.