They are wearing exceptionally well tread wise, they have gotten a tad noisier over 17k miles. I run at 65psi front and rear all the time , only air up the rears when gorssing more than 10k for a longer haul. They handle a load well or as well as the stockers I had before. They grip very well even on a hard launch.
I have noticed some small pieces of the tread blocks have chipped on the rears, which is not surprising given the trucks power. I noticed 6 months ago that there is some dry rot forming where at the bottom of tread/top of sidewall. Its cosmetic at this point, but at the rate the tread wears I'm betting the rot leads to replacement before the tread is gone. It's not rot, just the cracks that open in the rubber at big flex points.
All in all I'd still call them a.good buy, but I'd pay a couple hundred more for bfgs if I had the opportunity however. No regrets on buying them though. Hope that helps