Different experience here. FedEx, over the past couple of years, has been most accurate/informative with tracking data. UPS is "spotty" - sometimes very good, but I have had 3 or 4 shipments where they seemed to be just clueless (one that they finally tagged as "lost," which showed up a couple of days after the replacement order was delivered, one that was tagged as "lost," and Amazon had the replacement delivered just a day or two after the original order was supposed to show up, and one that languished for almost two weeks "in transit between carrier facilities" before it finally showed up. USPS seems to be pretty good with stuff that is shipped end-to-end with them. When they take a hand-off from FedEx or UPS, it gets "iffy." I don't know if that's the fault of USPS or the primary carrier.