In light of the posts below, I've removed the link, and I'd advise people to hold off, and I'll play guinea-pig, and see what arrives. Anything like the pictures posted, and I'll create a world of hurt for him in feedback, and bad word of mouth - I've had some nasty KB's in my time, but that's truly disgusting. In light of the Listing description ("Professionally Clean"), then I should be bomb-proof with a dispute.
I'll update the thread to reflect whatever condition I get them in, with pictures.
EDIT:-
Having now received the board, DO NOT BUY FROM THE SELLER "FOTONZZ".
Dirty, smelly, greasy. Substitute keycaps that sit lower than. The first time I've seen a truly worn out Cherry switch, and the casing is shinier from wear than if I'd tried to polish it with a dremel. Avoid at all costs, not even worth it for switch harvesting.