I have the Shark Guard, which is great for absorbing above the table sawdust, but I am disappointed at how it gets in the way for narrow rip cuts. I often have to remove it and its riving knife to make a cut. I think I may go back and re-look at the the problem. Maybe install the overarm DC unit I bought but never installed. Wasn't sure how to mount it, but just realized it can be attached to my shop wall next to the table saw. It will lift out of the way and I can keep my riving knife in place. Ah, sawdust, the inspiration for lots of projects.
The more I do, the less I accomplish.