Although Wang Zhihe's bean paste is cheap, it's just water bean paste, not oil bean paste. It's not delicious to make steamed stuffed bun snacks or bake moon cakes. I suggest buying oil bean paste.
Personally, I like Lianxianglou in Guangzhou. Although it is a little more expensive, it is much more delicious! Lianxianglou's is low-sugar and not greasy.