I ordered a new SKS stock from them for a reasonable price, but that has been it. No problem with them in one transaction.
Cheaper Than Dirt was surprisingly nice though, back when I first started getting into guns (4 months after my 21's birthday
) I ordered a 300 pack of speer "bullets" Of course, that was before I had realized the difference between a bullet and a round, silly me! I called them and the lady offered a full credit card refund, with me paying the shipping to return. Jokingly, I said I wouldn't mind keeping them if I got $10 or $15 refunded. And they did! $15 was credited to my card!