I can’t comment on that particular item, but I do think the marketplace has a problem with substandard products. I bought some models which look great—from a distance. Get too close and you realise that the textures are very low resolution and only have a diffuse channel; not even a normal map. There is another product where reviewers are complaining about bad geometry, and getting that right is hardly rocket science. On the other hand, I got some models which are fantastic, probably better than anything I could produce myself.
Because of the problems, I’m reluctant to buy anything from the marketplace now. I might get something good, or I might throw my money away. I would be much more likely to buy if there was a straightforward way of getting a refund, or if there was a way to try the products before purchasing.