Very different where I live. USPS is pretty reliable, but UPS and FedEx ...
UPS didn't deliver here for 3 days stating that their driver couldn't find the place and I watched a FedEx drive come up to the door with stickers saying that they couldn't deliver because no one was here.?
It varies I think. (Many of my eBay estimates are off),...But... On Friday, I sent my sister some coffee (local stuff) and they said, She'll have it Monday. And on Monday she called thanking me for it. Exactly like they (USPS) said.