On a whim I picked up a CRKT M16-03Z today. I had intended to buy a Benchmade Stryker, but the CRKT's caught my eye. Initially I was going to get the aluminum handled M16-03, but the zytel handled 03's now have the Carson Flipper on them. Plus they are cheaper. I hate to say it, but this may be the nicest looking folder I've ever had. And that includes two Spydie Delicas, Emerson Raven, Emerson CQC7-A, Benchmade AFCK, Benchmade 710, and a Benchmade 730. The BM 710 and 730 are the best put together knives I've had, but they cost two to three times as much as a CRKT M16. This M16 is one hell of a knife for the $50 I paid. You can get them cheaper if you buy it online somewhere. Anyways, the grind lines are perfect, the finish is attractive, and the liner lock locks up well and has already passed a spine whack test. It's also far sharper out of the box than the Benchmades or Emersons I've had. Only the Spydercos come sharper.
I don't know about their other models, but if you are thinking about a knife in the M16 series, definately go for it.