The Salsa's the best thing I've seen for heavy-duty work when you're limited to a short blade for practical reasons. I love the way mine (blue aluminum) performs and feels in my hand. It also "rides" really inconspicuously in the pocket, due to the wire clip and dark anodized handle.
--But--
It has one major flaw that prevents me from carrying it regularly. The cobra hood. At first I thought it looked stupid, then I got used to it and thought it looked endearing (that's kinda my pattern with Spydercos).
Problem is, when you combine the tip-up carry, smooth-opening compression lock, and cobra hood, I just can't get the damned thing to stay closed in the draw. It "waves" partially open about 20% of the time unless I contort my fingers around to hold the blade while drawing. I've lost blood twice because of this.
I'll still carry it under certain situations (tech work in "polite" environments, for example), but it'll never be an EDC with those issues.