Went on a trip over the weekend and racked up some miles (around 400 miles) as well as a decent amount of off-road use (4-5 hours of mild to moderate trails and more rocks than I expected).
On road the tires did very well. They do ride a bit stiffer than the stock Rubicon KMs, but I found I had to think about it to notice the difference. If I paid attention to try to detect a difference, I could feel that they may ride just a bit harder, but it's not bothersome or uncomfortable (even after 2+ hours). If I'm not trying to notice the difference, I don't.
The noise level on the highway is a bit higher pitched than the noise from the KMs (or from my buddy's Pro Comp Extreme MT2s on his TJ), but isn't as loud. If I'm listening to the radio/music, even at low volume, I can't hear the tire noise. Even if I'm just having a conversation, I don't notice the noise. But if I'm driving in "silence" so to speak, I will hear the whine a bit if I'm above 45 or so MPH. Again, it's not very loud and I stopped really noticing it once I stopped listening for it, so I doubt it would be bothersome for most people. Below 45 MPH, the noise was virtually non existent in my opinion, certainly not detectable above wind and engine sounds. I actually notice that I hear the engine more now with the new tires, because it's louder than the tires now.
Handling and tracking is all good, and they seem to roll just a bit easier than the KMs, particularly at low speeds. My mileage is unchanged at worst, it could even be a touch higher, but I don't have enough miles to say for sure.
Off road they did excellent. I didn't get into a ton of mud, but the slightly smeary spots I went through the tires handled without an issue. On packed dirt, gravel, and loose, dusty dirt they did wonderful. I was able to climb very steep hills with a mix of packed dirt, along with the occasional loose or gravelly section and it didn't even seem like it wanted to slip. However, the most amazing thing to me was how well it did in the rocks. I went up a very steep washed out hill, where there was a crack in the hill where water runs down from above when it rains. The crack was filled with various size rocks, ranging in size from softball size, to a foot or two in diameter. It was very steep and the rocks were mostly worn smooth from erosion. I only slipped in one spot. I simply backed up a foot or so and got one of my tires to pull itself onto the side of the hole it had been in, and up I went.
I also went up some slick, smooth shale in a wet creek (running water) and they didn't slip on the wet rock either. Wasn't very steep, but there were a couple steps to walk up and it went right up with no slip.
Overall the tires grip very well, and I didn't feel like I gave up anything in traction to the KMs. Maybe I would feel differently if I'd hit some deep mud, but so far I'm very happy with the traction. I didn't air down extensively, I was running them at 20 PSI, just FYI.
I haven't checked the tires out exhaustively, but I did look each one over a bit after leaving the trails, and didn't see any evidence of cutting or chipping.
Just a little update on how they are performing for me.