I don't know the site, nor have I even taken a look, but just be aware that with any Chinese supplier, excluding Hong Kong, if those good prices you are seeing are on branded items, then they will not be genuine products.
Steer well clear of anything branded from a Chinese supplier, not matter what assurances they give you in relation to the products authenticity, and no matter who the supplier is, if you don't want hassels when Customs get their hands on them.