Been on eBay 18 years+, only had a handful of return requests with over 6000 feedback. Each item that I took back ended up selling for more the second time I listed it. My only bad experience was with buying. Had a guy in Oliver springs TN, try to rip me off, but my US Postmaster help set him straight and eBay liked that I had a US Postmaster testifying on my behalf.
The only 1 negative I got came on a dollar knife I sold that the buyer never asked for a return or contacted me that there was an issue. Oh well, just my 2 cents.