Most of my shipments with FX and UPS have been great, with exception of Amazon packages, I don't think they know how to properly pack anything for shipment and I guess the shipper's sorting hubs have a field day with them. Last shipment one broken glass jar of salsa verde... what a freaking mess - it was all over all the other things in the box. Last three Amazon boxes crushed on at least two sides.
USPS where I live it seems to be a training route now. I used to order more expensive things with USPS service but not anymore. I've had a quite a bit of mis-delivered mail in my box, and so has everyone else, and there are some people in this neighborhood that have never heard of being good citizens and returning the misdelivered mail to the people it is addressed to. I've lost whole shipments of amp parts that were "delivered". Just recently a neighbor lost a shipment of high dollar sports clothing that was "delivered". I ask you, if you were experiencing this would you order two gold eagles and some silver bars with USPS?
Anything expensive like precious metals, coins, transformers and such I order with UPS insured.
I worked for Fed Ex and when I hear people say they have bad service with them it just doesn't make sense to me, because FX ground is basically owned by private contractors and they get paid by performance. If something went wrong on my route I likely would never hear the end of it back at the station.