Great styling and powerful. The Duramax 6.6 enables me to tow my previous travel trailer and now my 5th wheel. The truck is comfortable while towing and around town. I tow at the limit and it does it with ease. 10 to 11 mpg loaded many month vacations. I have clocked 28.1 as my best when not towing. That is verified by the truck computer. Love the truck. No matter what task I put in front of it, it gets done.