I was ready to buy a 2018 3500 DRW Longhorn until............ I read that for 2019 there was a change, maybe 2. The first change is the nav screen is going from the current 8.5" to a large 12" touch...
I don’t think I’d want a 12” screen, the 8.5” is great. As for UConnect...garbage! More than half the time it times out trying to lock/unlock/remote start. I did like the option to push a search address to the GPS though. Good luck with the 2019!