Being that I'm in Florida (by orders, not by choice), I have no rock experience to judge these tires by. But, in light mud and general off road experience, these tires have performed well.
I got these after I swapped an '05 Dana 44 w/ trac-loc Rubicon rear end underneath my 97 Sahara after the trashed Dana 30 died.
My tread wear has been excellent. I have 15k (+/- a bit) miles, rotated with oil change frequency, and have no uneven or undue tread wear. These tires have worn like Jennifer Aniston ages. Also relatively quiet on the pavement.
However, for the bad, the wet pavement traction is my only real complaint (LSD probably isn't helping much). If I'm driving through the one traffic circle on my way to work too quickly, the front tires will sometimes skid rather grab until I release the accelerator a bit. Also, I have to almost feather the throttle in order to maintain traction sometimes when leaving a stop sign/red light, and will very easily lose rear end traction turning through an intersection.
For me, wet weather pavement handling has been my only issue. I've had no complaints other than that. I really was sitting here scratching my head at the comments of bald tires at 8k-12k miles, as mine have worn perfectly.
Again though, my TJ sees 90% pavement, and nothing remotely similar to rock climbing here in Tampa, FL.