When I went it was relocated to Wellington Street so the once good directions in the previous review no longer apply.
This place is like most of the health food shops I've been to in downtown Hong Kong. They have a lot of interesting stuff. Because much of it is imported, that of course makes it seem pricey. There's lots of vegan stuff if that is your brand of vegetarianism. Regretably they also sell fish oil.
Cons: Not 100% vego (fish oil sold)