Probably the best supermarket in Gerrard Chinatown. It's a good mix between selection, freshness, cleanliness.
It's not as huge as some of the bigger ones on Spadina, but I find the produce to be mostly always fresh and very well priced. They also have a decent butcher and fresh fish counter, and healthy selection of frozen fish.
I stroll in here on my way home from work and pick out the specials, or if I need any specialty cooking supplies.