I've had new 1500's --2011 1500 SLE with a 6.2, 2013 Delali and a 2016 All-Terrain SLT and now a 2019 2500 Dmax Denali. No problems with any of them. As with anything, there are some bells and whistles that are fairly useless and a few things I wished they had but nothing that's a game changer for me. Wish the GM 2500's had the ladder like the fords, that bed is high and with a tonneau cover, there's not much to grab a hold of when using the bumper steps..And they are pretty high too.
My neighbor has a new Ford 2500 6.2 gasser--Nice truck, I'd buy it. Prior to that he was a hard core Dodge guy--Too many suspension problems for my tastes..Ball joints, wheel bearings etc. They are sharp looking though.