I deal with all three of the regular package services regularly. USPS has proven more cost effective than UPS and even more so FedEx.
When items and correspondence began arriving by USPS that were shipped UPS and FedEx, I started looking more closely at my shipping and ordering!
A package sent to me by FedEx last week took four days to get to my home in middle Tennessee and cost $68.95. It was supposed to be the fastest way available from Scottsdale AZ. The package can be held in one hand, palm up and weighs less than ten pounds.
Another package was ordered the same day from just outside Bend Oregon. Took it three days by USPS, cost $14.95, weighs 18 pounds and takes two hands to carry, (big flat rate box)!
The final kick in the pants is that the FedEx package arrived at my post office from the FedEx distribution center on that fourth morning!! It was delivered by the USPS carrier to my mailbox!!
I’ve had items disappear from all of the carriers! A package lost by UPS was never found and it took months to recover the cost from their insurers. A similar package, lost by USPS was found after a couple of days with only a couple of phone calls , one from the seller and one from me.
None of them are even close to perfect, but I have had better service from USPS, at less expense, than either of the others!!