Problem with FedEx Ground Shipping?

I decided to try FedEx ground, because they were closer to me and cheaper. The first time I was shipping 3 packages, including a power amp and an electric piano. The buyer of the amp was real nervous about the shipment and insisted on insurance which I always do anyways. The counter person forgot to put the insurance on, and nobody knew how to fix it. So they wrote out a slip saying it was insured (I worried until it got there). The tracking # for the electric piano never showed up, and both me and the buyer were concerned when it didn't arrive by the expected delivery date. Another time, I shipped a very carefully packaged guitar from here in Buffalo to Texas. The buyer said there was a dent in the guitar when it arrived. We both contacted FedEx ground. They picked it up for inspection, sent it back to the Buffalo terminal, shipped it back to Texas, and then back to Buffalo again, where I finally received it. The buyer had sent a pic of the original damage, and it was far worse when it finally arrived back to me. They made no attempt to safely repackage the guitar, and it practically fell out of the bottom of the double box. I filed a claim which took several months to settle. I must say that since then, I gave FedEx ground another chance, and they've been better. One final comment: whenever I go to FedEx to ship ground, they genrally seem to get annoyed. They seem to like handling their little overnight packages rather than the larger ground shipments. Then again there's UPS...where should I start...