A sub I want is sold as-is with a pic shown with its light being on. It is said that it is working in the auction but because of the as-is descriptor, it is implied there are no returns. Does that mean that I am not covered by PayPal in the event it is defective on arrival? What about 3 weeks after? I currently have some gear I am aware has issue that show themselves once every few weeks and want to be sure that even though I wouldn't sell that gear to unsuspecting buyers, that I would be covered in case something similar would happen in this case. Does anybody know for sure or has had experience in attempting to return as-is offered merchandise for a full refund?