For some reason, most people prefer USPS. I've sent stuff, paid for delivery confirmation, know for a fact the item was received, but according to USPS it wasn't. I even had a follow up sent, just to see what happened, no response. Priority mail isn't scanned at a processing center when it arrives or leaves-only next day. Even USPS doesn't know where it is. 3 years ago, a friend bought a 1 piece Red Chavez bow, paid for it, shipped USPS. It arrive broken in half at the riser. USPS accused the seller and buyer of fraud, stating that the bow was broken when shipped (even though the bow was damaged), and they were trying to collect on the insurance. After 6 months, my friend got his money back. Personally, I prefer UPS. I can track my package across the country. I've never had a problem with my parcels using UPS. A couple of years ago, I had a TradGanger chew me out, big time, for using UPS. But, I know where it is, when it arrived, and when it left.