I installed Carli suspension on it which rides a little better than the OEM suspension, but it still rides like a 3/4 ton. It's got a little under 8,000 miles on it and all I've done is put diesel and DEF in it. I daily drove the truck for 5 months, but bought a car at the end of '15 and now the truck only sees towing and hauling duty. My only complaint is the center console lid rattles on rough dirt roads. If I put my arm on the console lid with a little more than relaxed weight, the rattle goes away. Probably something in the latch, but it hasn't bothered me enough to troubleshoot it yet. I'll probably send it to the dealer for the first oil change and tell them about the console rattle.
I did make a foam mattress for the backseat and spent the night in it on Saturday at a cross country dirt bike race. I'm 6'0" and was able to stretch out all the way laying down at an angle which was satisfying.
I'm very satisfied with the truck at this point.