I have one at work and it does pretty good. I haven't figured out mpg yet, but that 6 speed is awesome. The truck we have is a 4 door, 4wd 2500 HD and pulls a midsize skidsteer loader with no problem, plus a full 95 gallon diesel tank in the bed plus a cross the bed tool box full of tools. If I had the need for one for my personal use, I'd seriously put it at the top of the list. We also have a few Ford F250 and 350 diesels and the Chevy is alot nicer and the power is right where you want it. The transmission brake is pretty cool too.
