In my experience, and I receive packages all the time, I cannot remember a time in which USPS did not deliver a package to me. Only one time can I remember where the package was damaged. The main reason why mail gets sorted wrong sometimes is that because the Republicans have tried to kill off the USPS so many times, it forced the USPS to take on advertising revenue by passing around a bunch of spam mail bundled with real mail.

FedEx's tracking is completely and utterly broken. It's just wrong nearly 100% of the time. FedEx doesn't appear to damage packages much, but the tracking is basically an implementation of Zeno's paradox.

UPS tracking is better than FedEx, but it is very likely to damage your package. I got an Amazon package delivered by UPS today where they had damaged the box so bad it was being completely held up by tape that they had wrapped the box with.

FedEx and UPS are clear examples that the right-wing wanting to kill off USPS because it's "inefficient" is a lie. They want to kill it off because they want FedEx and UPS and other such corporations to make more money and become larger -opolies.