I can attest to FedEx ground being a disaster . . . My house is on a dead end road and there are several dead ends along the main road. The Fed Ex driver has repeatedly delivered my package to the house at the end of the wrong dead end. (my road is on the left, the driver keeps delivering on the road to the right)
There are obvious road signs marking each road and the house numbers are entirely different, yet the driver keeps going to the wrong road & wrong house. When you call FedEx and/or look on their website, they give you the impression that they can/will retrieve the mis-delivered package and get it to the proper address. It does not happen . . .
Finally the person at the 'wrong' house came over and advised us that they had received our packages. They had notified FedEx, yet nothing happened. At least we now know where to look when the next FedEx delivery does not show up.
UPS and Amazon have been 100% in their deliveries to my house, Not sure what is going on at FedEx . . . But I'm "FedUP" . . . so I avoid choosing FedEx ground whenever possible.