I've owned this truck for a little over two years now, and over 100K miles. Aside from a Toyota Celica I had in college, this is the best car/truck I have ever owned. Great reliability, great power, great towing capacity. All I've had done to it is change the oil & rotate the tires every 5K miles and recently, changed the front/rear differential oil. The ribber gaskets around the front doors do come off at the upper corner if you use automatic car washes. That's my only complaint. Fuel mileage is what you would expect for a 5.7L with this much power and torque. I get about 18/Hwy and 16 City.
Power. Storage areas. Rear-seat legroom. Power rear window. Styling.
JBL sound system is over-priced, and just average in quality. It was about a $1K add. Improve the exterior rubber gaskets around the front doors. Automatic car washes make them pull away at the upper corners. Have a factory cargo cover as an option. Headlamp aiming (I get a lot of flashes).