I recently purchased my 2007 Ram Quad Cab 4x4 with the new 6.7 Cummins. Wow what a powerful machine. The 325hp is apparent when you hammer the throttle. Mileage wise not to bad either 15/18 only 4,000 miles on it so should get better as it breaks in. Comfortable seats but agree with other reviews that the material is a little soft. See over time how it wears.
Cummins power, roomy interior, under seat storage, Sirius radio, exhaust brake, and the get out of my way front end.
Factory tube steps or steps of some sort would make it easier for smaller framed people to get in and out of as it sits high.