I have the CQC-10. It replaced my CF spyderco mili. And since then it has been the only thing in pocket. It is a very well designed knife. I never had the 2000, tried to trade for one a couple of times and it didn't work out. I know for sure the the CQC is definably never getting traded/sold.
My short review on the CQC-10
Blade:
You can read about the blade steel qualities elsewhere, as it has been discussed at length before. Blade cames shaving sharp, and it holds the edge well. The blade shape works fine as food prep knife. Which was a nice surprise to be able to cut tomatoes with the blade that thick. No recurve will also be easier to sharpen if you aren't good at it. Satin finish, isn't exactly satin, and doesn't reflect light. And can get scratched (or maybe the scratches a re bit more visible)
The ergoes on this knife are done right. It doesn't force you into any single grip and you will feel comfortable holding it any way you want it (perhaps the most important thing on a blade used for defense is the ability to grab it and be comfortable in the grip you were able to get a hold of)
The wave:
Wave feature is great for quick opening. The knife comes out open without you having to think twice about it. Even assisted opening or automatics will not be faster from the time you perceive threat to deployment of the blade (not saying they will be slower either). Also its not hard to pull out knife without having it pop open.
Fit & Finish.
I can't compare it to Al Mar as I don't have one. But as compared to my other folder knives (zt0350, zt0400, BM580, 5.11) it is not lagging behind. The way it is put together is not with some unusual bolts and screws it can be adjusted in the field with the most common of tools. The blade opens smooth and not too loud.
My final opinion:
No nonsense knife, while it is not the prettiest thing out there performance wise it can do everything I need it to, without being too heavy, flashy or bulky. It can do day to day tasks, and I have yet to find a folder that I would feel more comfortable in a fast response defense situation. The knife just works and is easy to maintain, and I don't carry anything else.
If you have any more questions feel free to ask and' I'll try to answer them.