ebay favors the buyer. I have over two hundred purchases on that site from simply every day stuff to antiques. I have had three bad purchases all of which were refunded, two were refunded by ebay the other by the seller.

In the case of the seller refund they state on their pages to please contact them first because honest sellers value their ratings.

now if you are a seller ebay can be trouble and you really need to filter out selling expensive items to low rated buyers and nothing expensive to new accounts.