There is a lot of overpriced stuff there, but that has been true on
ebay, too. If you spend the time to look past the junk, deals can be had. I've been very pleased with the prices I've paid on some items. I'd be more specific, but I don't need the competition for my searches.

One useful feature when reviewing search results is that you can click the little symbol next to a seller's name to delete all of that seller's items from the results of that particular search. So, if the results are clogged with items from someone who charges $7 for shipping, or won't ship to your country, or prices items way up in the sky, their items can go away with one click. The more corporate BS becomes, the more likely it is that that feature goes away, I suspect.