I've owned a number of CRKTs myself; if you can weed out the overcosmetic commercialist junk, they've actually a few big hits.
-The Carson Line is fabulously tough and functional
-Veff serrations work beautifully
-Their button lock is one of few I'd be willing to trust
-The ABC is one of the handiest fixed knives I've owned
And on and on. The Hissatsu folder is one of the good ones, I think, but I mean that in the sense that it excels at the purpose it was engineered for. There are a few structural liabilities (the stop pin is just a wee piece of metal, and instead of the handle slabs being connected by rivets they're just screwed into the backspacer, etc.) but those popular photos seem to indicate that they're minor. My only real problem is that I'm wary of it's primary function. I know that any one of my knives could be used as a weapon, and that I could use one as such if I had to, but I don't want to carry a knife that was implicitly designed to this end. Especially if that design compromises its ability to perform basic tasks, which in this case, it does. The sinister curve and the thick tapered grind facilitate slashing and stabbing; I find the knife ill-suited to the utility role, so I don't have much excuse to carry it.
And I'm in Canada; my excuse really matters.
Having said all that, it is a wonderful knife. Few blades handle so intuitively, it's quick on the draw and on the replace, it's perfectly balanced for a fighting folder...and it's wicked fun to play with. Check out the new 2008 CRKT catalogue; lots of neat new stuff coming in...