You will love your new truck. I only have 500 miles on mine but it is great. I was worried the 450 would ride rough but it doesn't. I always thought GM's rode nicer than Fords but this truck rides as smooth as my 16 Denali dually did. I towed around 24k (trailer and load) about 200 miles with it and it handled it with ease. I drove down a 1/4 mile long private drive heading to a job site pulling my 32' and came to a locked gate and had to back out. When trying to back on to main road I got off in the ditch a bit and ripped a mud flap off. Bummer. I think I will look into the duraflaps.