Mostly my PO is good. I'm dropping stuff off at the local PO, which is often quite busy, all the time. Just about everyone working there recognizes me, and they're all pretty competent.
I've had some mixed results for delivery though. At my current appartment, the two delivery people I've got are (thankfully) quite good. The package guy is awesome, he knows to just hit the buzzer, wait for the static garble that indicates I'm home, and then leaves whatever it is downstairs. If there's a lot of packages, he actually helps me carry them upstairs. No joke. I just about died of shock the first time he did it, heh.
Now, at my previous appartment, I had similar nightmares with folding of stuff. Check this out:
Yeah, that's a Grenadier miniatures
box that got folded to fit into my tiny little appartment mailbox.