I've got a '14 F350 with the 6.7 Powerstroke. Other than a cracked exhaust filter, leaking rad hose, 1 ball joint, and a cracked transfer case housing its been flawless for the last 138,000 km (86,000 miles). The exhaust filter issue was "fixed" 1.5 years into owning it, never again did it throw an emissions code and of course it has smelt like a diesel ever since. Everything else was warranty work, even the transfer case housing I cracked when pulling a big hill in the winter. The truck hit ice and spun the tires hitting the speed limiter it was spinning so hard then grabbed dry pavement, the angle on the driveshaft from the lift didn't help that either.
My Fiance has a '18 Chevrolet Colorado with the 2.8 Liter Duramax Diesel with 28,000 km (17,000 miles). This thing has been nothing but trouble, the turbo has been replaced 3 times now (they form ice in the intake in cold weather and the turbo ingests it), the steering box was replaced, the def pump and def lines have been replaced, the ECM also fried when it was being updated and that has been replaced.
At the rate we're going I'll never get a new truck, as my F350 will likely far outlive this Colorado.