Got mine out of the box and gave it a work out saturday, and I have to say I'm quite pleased with this steel. So far I don't like it better than M390 (for the para 2) but I like it just as much, for different reasons. I broke down a few cardboard boxes, the edge didn't really seem to care too much. Still lazer sharp. Then I decided that as a fun test I'd cut all the way through a pine log (from our christmas tree.) It was about 5 inches diameter. I was pleased with the toughness, I did get a small chip (sorry no pics) probably a 16th of an inch wide and a 32nd deep. That's because I made a few pretty abusive side to side movements, sticking the knife into the wood and then prying sideways with the bevel. (I did this to test it mostly) It did fine with a little pressure, but when it chirped I heard an audible click.
After this the knife had no problem slicing printer or receipt paper, struggled a little bit but could still make push cuts, and was starting to loose the ability to do s cuts. The dulling seemed to be blunting from me putting lots of pressure into hard wood. Sharpening was interesting. It seemed to bite into the diamonds better than S110V, but as I did visual checks for stock removal, it was slower than S110V, kind of interesting, just the way I felt it. I gave up trying to get the chip out eventually. Maxamet gets a little bit of a burr if that's the way you sharpen, but it's a PAIN and a half to remove. Strops did the best. BTW factory edge angle was about 16dps. I was happy with that so I matched that edge.
We'll see how my edge does compared to the factory. I'm running the standard KME 1500 grit. I havn't seen anything crazy like the edge falling off during sharpening, or excessive chipping. Only chips I have gotten have been something that would chip s35vn or similar.