I've got 55,000-plus miles on my 2007 Power Wagon. I put more than 25,000 of that on the truck since buying it just about a year ago.
I would buy another one in a heartbeat.
Only issues I have had are a leaking front pinion seal at about 40,000 miles, a slight weep from one shock absorber, and an intermittent failure of the in-dash nav system to read the database disk. I think that problem is caused by dust in the head unit.
The truck is just now beginning to develop a few, very minor, interior squeaks. But no more so than any other vehicle I have used for off-highway travel.
The Hemi is awesome. The cooling system is awesome. The electric front swaybar disconnect might be the neatest thing on the truck. The lockers take a bit of a learning curve for maximum usefulness, but are a fantastic tool. The underbody armor is sweet. The nearly 500-mile fuel range is fantastic.
This truck is my daily driver, my overland rig, and my home-improvement hauler. Pretty good value for the money when you consider everything it does really well.