This is a great specialty store that has every product you could possibly need to make great Italian food. You'll likely find a lot of items you didn't know you needed, as they only stock the store with the best of the best. Their Parmesan cheese is a personal favorite--way better than anything you'll get at Giant Eagle.
I also recommend their homemade dishes, some of which you can buy frozen and eat at your leisure. Their style of food will remind you of what your Italian-American grandparents used to lovingly make, so don't expect gourmet pizzas or fancy pasta dishes. And that being said, I'd gladly eat here every day.
They're not open long hours, and they're not shy about telling you when they're about to close, but as a family-owned store, you have to respect that they try to have lives.
Oh, and try their tiramisu.