Love it. Keeps an edge for a long time, but is harder to sharpen if you let it get dull. Its some tough steel and more acute geometry isn't an issue. In my experience, it performs better with a slightly toothy edge versus a polished one.
Kershaw / ZT is the only manufacturer Hitachi will allow to heat treat their steel. All others must send it back to them for this. There has been mention that William Henry also is allowed to heat treat the steel, but that has never been confirmed.