Just got my 2011 Denali HD (w/ dirtymax) a week ago today.. Ordered it several weeks back and she finally made it.. It is by far the smoothest truck and nicest truck I have ever sat in much less driven or owned.. It has power out of this world and you can feel it in every aspect of your drive.. I put her to the test just the other day and pulled a ram out the ditch.. it was honestly like i was just in reverse with nothing attached to my front end.. pretty much like pulling out a little radio flyer wagon.. I had the girl with me video it and watching it back.. i saw my front end didn't buckle down one bit.. this truck is a pure beast and the luxury combined with the power makes it by far the sexiest truck on the road.. and the fact that I can view everything about my truck as well as start, stop, lock, unlock and set off the alarm from anywhere I have cell phone service right from my iPhone just makes it that much more awesome.. Maybe I'm biased because I own one but regardless.. she's a beauty..