i'll have to go out on a limb here and stick up for the post office. in the last 10 years I've sent over 2000 packages from ebay and gunbroker items and at least 90-95% of those were USPS and with only one exception in the US (ignore a package to South Africa that was "lost) there has never been one single package that was damaged or lost. some were slow, maybe slower than they should have been. and usps tracking is totally dependent on the post office staff/mailmen actually scanning the package and I've likewise had some that never showed a tracking history but it has been RARE.

the one package that was "lost" in this country was delivered to the wrong address on the correct street. usps customer service was able to determine the mailman who delivered it from his ID associated with the tracking scan and the buyer of the item got the address from the mailman and got his package from the people who received it. personally I thought that was just friggin awesome service.

it's bad when things do go wrong and just like every other business in the world, results are due to the responsibility of the personnel and EVERY company has some bad staff. but i'm going to have to go with the average I've had. 10 years, 1900 packages at least and not one lost or damaged.