It's pretty rare to find any vendors that have 100 percent ratings on eBay. There are always the dickheads in the world that complain about something that was clearly stated or was their own fault. However, you're not buying a $20 T-shirt or a poster of a Shelby Mustang GT500 here. You're making an investment; an investment that costs thousands of dollars, so it's worth taking every single precaution. If there is a legitimate complaint about a car that the seller has previously listed, that's enough reason not to trust the car that you're considering.