I just took delivery on a 2008 SLT 4X4 2500 with auto and 6.7L Diesel. What a truck! This vehicle handles like a 1/2 ton but the ride is a bit tighter. I went from a 2002 Toyota Tundra TRD 2WD access cab. I like the quad cab door arrangement as I always felt that the suicide style doors of the rear Tundra were worthless in parking lot when your right next to another car. This Dodge actually turns better (turning radius) than the Tundra but parking is still a slight challenge. The long bed or Mega cab with the longer wheel base would be much worse. The engine has power to spare and mileage on freeway at 65 is 21 - 22mpg with 100 miles on car...around town is not so good...12 - 15 mpg.
The diesel motor, UConnect -- works better than the Bluetooth in my 2007 Land Rover, ride and handling is excellent, solid build so far, transmission is also excellent. The exhaust brake is a very nice feature and will save brakes on grades when towing a trailer or under load. Electronic 4WD
Wheels are a bit small looking and the truck does ride a bit high so it is tough for some to get in. I think I will add side steps. Should come standards with protection for the top edges of the bed, too soon to tell about other things at this time. So far, so good.