[spfzero]

For most shipments in the weight categories I use, USPS is the least expensive. It's as reliable as Fed Ex or UPS in my experience. I do go into the post office fairly regularly, and have a PO box as well. Everyone's nice enough, they can answer pretty much any question you have. They're experienced, career employees, rather than franchisees. Yes, you usually have to wait in line for some things, but they have kiosks for simple tasks.

I'm sure others will have had other anecdotal experiences, both bad and good, that's just the nature of a large organization. I've lived in several different cities over time and USPS has been consistently fine.