I have the same as Dave - Bought it in 2001 for my half ton short box, and have moved it twice.
The only thing I dislike is the rails in the bed. If I had a blank slate, I'd get the B&W turnover ball set up. The only drawback with those is if you live and operate in a dirty environment, the release mechanism (for removing the ball) tends to not work if its got a bunch of dirt in it (suprise, huh?).