MY personal experience has been good so far. I ordered a 5020FD and then I returned it for various reasons. They picked up the set without any issues.
Last week I ordered a Samsung LN52A750 from Amazon again and it was delivered without any issues.
The one thing you have to make sure if that when you purchase from Amazon makes sure the seller is actually Amazon and not a partner, this will make returns easier if you need to return the TV.
XBR65X930C, AVR-X4200W, NVIDIA ShieldTV, SVS SB12-NSD, RF-42 II, RC-52 II, RB-41 II