There are no local fruit and veggie markets in the downtown core except this one. It's a super convenient location with a nice selection of fruit for cheap. Chinatown will probably be even cheaper for produce, but if you don't wanna make the trek to Spadina on foot or by TTC, then Yonge Market is the place to go to. It's way cleaner anyway with a much friendlier staff that remembers you.
Come here to look for fruit and veggies before going to the supermarkets (Loblaws charges ridiculous amounts).