I picked mine up two weeks ago. We love it. No Booming noises at 40-45 mph. The transmission seems to work great. Apple CarPlay is a really nice additional feature that is still in its infancy but with future updates will become much more impressive. I drove it home 9 hrs from the dealership that I bought it at and averaged 20.9 mpg going from Boise to just outside Seattle. Pretty good gas mileage considering the distance and the elevation change going up over Mt Rainer. There is a slight rattle in the dash on the left side that we haven't quite figured out but its only noticeable at low speeds.
Apple CarPlay is supposed to wireless at some point. The 4WD XL Denali that I ordered was built last Monday but I have an understanding with the dealer that I can opt out if I want to. I really want to get the wireless CarPlay.
Does anyone know if it will be available later as an "update" or if I'll have to trade for a different truck to get it?