The people who complain about this place are missing the point - This is by far your best bet in a gas station or convenience store within several miles of this place.
Yes, it always crowded, which makes sense considering it IS the best gas station or convenience store within several miles!!! I would never go out my way to go here, but if I need gas or milk while passing through Wilkinsburg - and I frequently do - this is the place to go.
It is more of a small grocery store than a convenience store really - they have fruit and meat and a lot of other grocery items. They have baked goods and sandwhiches made to order. It was just recently remodeled.
I bet they wish they bought twice as much land and built a bigger place because the customer volume could clearly support it.