Let's start with the food. The dumplings are delicious. I would stick to the traditional pork dumplings, maybe with some shrimp. They are delicious. They are the perfect size and ratio. These dumplings are hands down the most authentic that I have had in canada. They remind me of my father-in-law's dumplings he makes when we visit him in Beijing.
They also have Lao Beijing noodles which are a classic in Beijing, something that's really hard to find in canada. Usually they give you a south chinese equivalent or, the sauce isn't preserved enough. Other than that, I would stick to those two options.
It's a family run place and they are usually there before/after hours. One time, they even opened the resto half an hour early for us! That's better service than I've had in most restaurant in Toronto.
Also, you get great bang for your buck. We usually buy a few dozen bags of frozen dumplings on our way out to cook up on a busy night.
Really nice. Really accommodating. And delicious authentic dumplings.