I bought DD #36 that they graded as a 9.8. I didn't notice the big back cover scan or else I would have never wasted my time. Lower left back corner has a heavy 3/4" crease on it and the book, from the scans, would not have graded higher than an 8.5. I felt it was closer to an 8.0, in hand.
Summing up: the defect I missed was in their scan and they gave a complete, no hassle refund including my return shipping. The negative is that they over-graded by 6 grades. My advice is to carefully examine the scans they provide and bid if you want too. I have confidence that they will be a class act if they need to refund.
http://www.ebay.com/itm/131287645378?_trksid=p2059210.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT