Bought a CQC7-A, my first Emerson knife. I have to say I'm pleased with the overall feel and quality. The liner seats right where I like it on a liner lock (fully engaged but still towards the left as I look at it).
I like the feel of the handles and the size is great for regular carry. I have heard some criticism in the past of the blade-to-handle ratio, but on this particular design I think it really works. You get plenty of grip for the blade.
I think I got an older(?) production model. There is no marking of 154 CM on the blade, so I assume it's ATS-34; it's bead-blasted. Opening/closing action is very smooth. Haven't noticed any loosening of pivot screw, but if it does, I'll just Loctite it.
Jim