Since I got my Assault Shaker a few months ago, it has been part of my EDC complement of knives. Although some have commented on its weight being heavy for a neck knife, a minute after putting it on I don't even notice that it's there. The only time I think about the weight is if I wear a second neck knife, usually my Livesay ExecNRGS, because then the cumulative weight DOES make an impression. IIRC some folks lace the rivets in the sheath with paracord for belt carry, which would preclude the weight being so much of an issue. In accordance with the old saw that "The best knife to use is the one you have with you", I find that the Shaker probably gets more usage time than most of my knives simply because it's always with me.
I find it a very handy replacement for a utility knife (i.e. Stanley retractible blade utility knives). It did a bang-up job cutting up an old living room carpet into strips for disposal. That's a nasty job for a blade, since the carpet backing is abrasive & there's usually grit and sand embedded in the carpet fibers. The total damage to the knife was the edge dulled from that job & a bit of the coating wore off the tip. But the edge came back readily with some time on the Spyderco Sharpmaker. The satiny steel at the tip is now considered part of the "character" of the knife.
It makes a great junkmail opener and is a good tool for cutting up cardboard boxes & other packaging. Despite the fact that I never seem to get the tip as sharp as the rest of the edge, the tip always seems to slice very cleanly & easily into plastic bags of chips or candy. It works
WONDERFULLY for opening boxes with new goodies from Busse.

As noted, it is a sturdy little prybar and I use it occasionally to open sticky cabinet doors/drawers or stubborn computer cases. In spite of the blade being short and fat (1/4" thick INFI), it cuts well, perhaps because so much of the cutting edge is belly.
I use it almost daily to slice and chunk up my "leftovers du jour" at lunchtime. Its short blade length makes it convenient for cutting operations in the confines of a plastic kitchen storage container. You learn to ignore the scratches it puts on the interior of the containers.

It also makes a very handy steak knife at home.
Just yesterday while helping Mrs RokJok with outside projects I used the Shaker to trim off some lengths of decorative vine (dead from a spell of dry weather) from the front of our house. I then used the Shaker's kydex sheath to alleviate finger pressure while screwing in an eye-hook for hanging a basket of fuscias for her. The mouth opening of the sheath is a good size for slipping over the eye of the screw and the kydex is stiff enough to spread out the pressure from turning in the screw, especially the last few turns. I could have gotten a plier from the toolbox to do the job but the Shaker sheath was handier, like right around my neck at the moment.
So my opinion of the Shaker is that it's a very handy, very versatile little blade that helps me in lots of my daily activites.