I just picked up a JD Smith this week.
I was web shopping for one and had ruled it out because of a similar thread I started in Knife reviews I believe.
Then while on vacation last week I stopped into a knife shop on the reccomendation of another forumite. They did have the Smith in stock and I just had to see it for myself because I have an affinity for the G-10 and Micarta Spydies.
First off, it is without a doubt Micarta.
I held it in my hand for about 5 seconds, checked the QC and set it in the "I'll buy these" stack. I paid exactly $84 for it and feel it is worth every penny.
Some have said that since it only has a single steel liner that it could be weak, I don't see that as being a problem. The lock-up is perfect with no movement or even light clicking and it's as smooth as butter.
I carried this knife for 5 days after getting it and used it for a lot of things, mainly as a general camp folder.
It is now one of my favorite Spyderco's (along with about 8 others
)
The only flaw in the design from my standpoint is that it would have been better served with an adjustable pivot, I like them a little tighter than most factory set tensions.
I'd say buy one.