I've got ax41's front and rear.
About 400 miles on them so far. About 300-350 of that has been lane splitting much of it in wet weather. So far they slip a bit more on the lane markers (mumps bumps) and maybe even road paint than the oem 90/10s but either I'm getting used to it or they are wearing in, as it doesn't bother me as much as it did a few weeks ago.
The noise is cool, and I tend to drive about 5-10 mph slower, 75-85 instead of 80-90 so that's actually a good thing, I don't need a ticket. They don't seem to make me tired any faster than the stockers did.
I've taken them on a few dirt roads and trails. I've mainly been focused on areas where the oem 90/10s failed (wet clay mud and wet grass made me unhappy) and these are great in those conditions. Slippery rocks and creek crossings are no problem. They grip like velcro on hard dirt and steep short ups and downs. (I'm a dirt novice, so short ups and short downs).
Pretty happy so far, except that as I mentioned above I'm probably 90/10 street/dirt at best, so maybe 50/50s weren't the best choice but I'm hoping to get few camping trips in over the next few months and it seemed like the thing to do.