Feel like I've had my 6.2 25 LT TB now and have shaken everything down. There are 2 petty negatives I can find about it is my old 2019 came with darker tented front windows the new one is hardly tented. Also I think my 2019 had an optional heavier duty brakes and calipers. I swear the brakes on the new one does not feel as strong and they even visually look smaller than what was on the 2019. So that is it with any negative. The power increase is crazy over the 5.3, the drive modes are awesome, it rides like a dream on the highway, very quiet in the cab and the highlight for me is my average fuel economy is the same as the 5.3. I haven't had the oil burn that I have heard others talk about, maybe its just to early though, I check it once a week 3400 miles total and I changed at 500 so only 2900 since that change. Pulled the camper once on a trip and big upgrade towing. Awesome, Awesome truck now lets just stay problem free for the next 120K.