I have bought and sold for years on eBay. The difficulties with buying can be that many sellers are selling from 3rd party sites, and never actually come into physical contact with the items. This poses an issue if the quality is not up to par, or is misrepresented by the seller in the descriptions.
To counter this when I am selling. I put actual photos of the items with full descriptions, and beyond. You can tell that from the type of pics that you are looking at the actual item. Very important. I occasionally use a stock pic, followed up with actual pics. Never had an issue. 100% feedback.
I feel due to this kind of history as a seller, eBay really takes care of me as a buyer. Gives me great support, and rarely ever questions a complaint.
I recently won a case where UPS charged me for an oversized package due to its dimensions exceeding 130 inches in total. I questioned UPS store employees, and after a long conversation, they admitted that UPS adds 5 inches to all parcel dimensions, then calculates from there. EBay was was informed of this 'cheating' and will note it in any other disputes.
Be aware, is all I can say.

