So far mine has been pretty good. I did have to have the EGR cooler replaced. That was the biggest so far. Other than that, I had a VGT sensor, two EGRs and two ICP sensors. Truck has towed my 13,000lbs 5ht wheel beautifully and gets decent mileage as my daily driver to boot. The truck has over 50K miles on it now.
I do know there have been quite a few out there that have had some problems, but let's keep in mind that the diesel performance world and these boards are only a small sampling of the Powerstroke owners. Remember Ford sells about 250,000 of these diesel trucks annually. That works out to be almost 1 million diesel F-series trucks since the 2003.25 model year. I think what you are seeing is a few that have gone out in search of others that have had problems so a lot of people assume that it is the norm for the 6.0. I, like a lot of people, talk to others at the pumps and have found ONE person that hated their 6.0 in the dozens of 6.0 owners that I have talked to.
The 7.3 was not flawless now was it?