So much for Guaranteed Delivery

I decided to give Amazon Prime another chance, and took out a 30-day trial with the intent to stick with it if the service got better. I placed an order with a "Guaranteed Delivery" date for today, December 1st via USPS. Not only didn't USPS deliver it today, but according to their website it just recently arrived in New Jersey (I live in New York). What good is the Prime two-day free delivery, if it takes longer than two days? Yet another reason to pass on Prime. Obviously I won't renew to a full year, not after this poor experience. The last time I tried Prime, the service was terrible, and it looks like it's still terrible. Not worth the price.

UPDATE: The package finally came today, December 4th, four days after it was "guaranteed" to be delivered. The package also came damaged, with lots of dirt on the box as if it was thrown around in a football game. It baffles me that Prime members still have to deal with the post office. You'd think Amazon would give Prime members a more premium carrier, such as UPS or FedEx, but instead we must suffer just like everyone else with USPS.