I ordered a collectable watch from the site. What was listed was a brand new item with all relevant accessories and a stamped warranty card from a well known retailer.
What arrived was a dirty used watch with none of these items.
The authentication check you pay for is supposed to check for three things, that it matches the listing (it doesn't), that it matches the condition advertised (it doesn't) and that it is authentic (it might be, but all of the provenence is missing.
At best I received a package worth about 50% of what was advertised, at worst I have a fake watch.
Then the real fun starts, customer service is poor and their refund policy borders on illegal. You can return the item for re-examination, but if they deem it to still match these elements, they will relist the now much lower value item and send you a percentage.
It is not their fault that the seller has misrepresented the item, but the whole point of the QC process you pay for is to ensure rubbish like this does not make it through to the buyer.
Thankfully I paid with PayPal, so I have some support in reclaiming the money spent, but now I wait to see if I am able to achieve a refund. Something which should be very simple.
Based on this experience I can only recommend you avoid until the QC process actually has some value.