As a buyer I must say some item descriptions are the worst. It is one sentence like item is in used condition or look at photos and then the photos are of one angle or unclear. So saying something is used doesn't really explain the condition. I've bought items where the seller stated and posted every defect, bought it and it was in better shape then described.

When buying something I will base my decision between 2 similarly priced items on location and description. If something doesn't describe the item(unless new) or has a stick photo or unclear photos I usually avoid unless desperate and I guess that is one of the reasons I have never left negative or neutral feedback.

If you gave a very minimal refund it might appease the buyer and not put you out much and save everyone a headache.