Yeah, my family and I have had multiple run-ins with the USPS. Three separate times my mom has had packages sent to my sister in San Diego stolen directly by the USPS staff. At home here in Youngstown, I've had numerous issues with on-time deliveries. As a result, I've switched entirely to electronic communications and UPS/FedEx for packages... even where it costs me extra to do it.
I've said it before, and I'll say it again... show me a government service that works efficiently and effectively, and I'll dance a jig in support of bigger government projects. Until then, I'll continue to be a good old-fashioned capitalist and support good businesses.