After driving a 00 Durango V8 for four years I didn't know what to expect from the 4.0 6. All I can say is WOW! I drive up a 6000' "hill" twice a week and it just loafs up, hardly ever kicking into low gear. Performance in snow with aftermarket BFG AT T/A's was fantastic. At 6'4" and 300 lbs it's still a very comfortable drive.
Power, maneuverability. Roof storage is great for snow chains.
Side mirrors don't adjust outward far enough. When making a left lane change you had better be looking over your shoulder! I know it's a SUV, but the seat padding is a little hard for my taste.