This truly is one of those tools that no shop should be without. It is a straightedge, cutting guide/ fence, clamp . . . I have completed several projects with this tool and think how simple and useful it is each and every time. It is solid and lightweight. It sets up easily, place it on your workpiece, slide the adjustable end to the edge of it and check your dimensions, then flip the lock lever. Thats it, when your done, flip the lever again and lift it off. No C clamps or quick grips in the way, not even the the levers are in the way because they are no wider than the tool itself, so you can cut, mark, rout on either side. I have ripped various sheet goods, scored drywall using this guide and a utility knife, run jig & circular saws and a router, all with excellent results. I have the 24, 36 and 50 inch models, all perform equally well.  My only complaint, and it really isn't the tool's fault is that if your workpiece is not prperly supported in the middle, the base plate of whatever tool you are using can ride under the Clamp-N-Tool guide and foil your cut. I generally press down lightly just ahead of the tool to keep it in plane. With a router this is difficult ( dangerous ) to do, so I have ordered the FTR Series with the router plate in the 96" length, I haven't received it yet so no review for now.  Hope this review helps you, these guides sure have helped me!