I agree that the concept of the Q is very nice. I bought mine as a knife not to scare the hoplophobes and I liked it at first. Then, I had the clip catch on something and tear out of its holders, destroying the holders. I sent it to Spyderco, who repaired/relaced it. I then was so taken with it that I bought one each for my son and his fiancee. Then I had the clip come loose again, this time sparing the scales, so I put mine away and don't carry it. My son had the lock spring come out on his, not once but three or four times, before he went back to his old Endura. I have no idea how his wife's has panned out, I know that she does not carry it.
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Walk in the Light of God,
Hugh