I never received one of my packages earlier this year because they delivered it to the wrong address where it was ether lost or stolen.
Another package was left out in the street in front of my apartment building. Delivery person did not ring my doorbell or leave a notice, just left it there on a busy midtown Manhattan street where it could have been stolen.
8 times this year I have had to go to their main office to pick up my packages, costing me time and $$. That is because they prefer to leave failed delivery notices instead of ringing my doorbell and handing me the package. On one occasion the package was not at the main office (even though they said it was there.) and I had to come back the next day to pick it up.
They are supposed to hold the package for 5 days before sending it back. A few other times after only "2 failed delivery attempts" they sent my package straight back to the sender w/out holding it.:-(
Review about: Usps Delivery Service.