Yeah, a lot of it is regional, you have to find who's best for your area, coming and going can be different too. In a lot of areas USPS can be pretty darn reliable, but in others it's literally a crapshoot if your item disappears or not. A friend of mine runs a e-cig liquid company (any vapers in the house PM if you want to know who has the best juice on the planet) out of southwest Georgia, well USPS did a good job for them up until they closed down the regional sorting center and rerouted everything to the Tallahassee facility, after that it was a nightmare, they literally lost 1/3 of all their shipments, and they shipped all over the world. He had to switch to the UPS service that delivers to the local USPS facility and hands it off. No problems with the new shipping arrangement.