My 2007 GMC 2500HD has been great to me. I use it to pull a trailer for work and it pulls it without any hesitation at all. The power the 6.0 puts out is great, and the engine/transmission has not had a single mechanical breakdown yet with over 200,000 miles on the powertrain. The overall interior quality is pretty good, dash hasn't cracked yet but the headliner is sagging a bit and the drivers seat is ripped from the constant getting in and out.