I have never regularly carried a large SAK (I used to always have a classic SD on me, though), but I have to say that I am absolutely loving my Pioneer X. My most-used tool on it has turned out to be the cap lifter/flat screwdriver, which I use mainly as a pry tool. I also use the awl quite a bit.
To be honest, I don't love the blade; it's fine for breaking down boxes, but it did not impress, for instance, slicing an apple. I think I'll probably end up carrying one of my beloved Buck 501 Squires alongside it.