Might be okay for small things like boxes. What do you do with a piece that is, say, 7" wide x 15" high, such as a drawer side? Not much there on the jig to hold it up against. I like a much bigger backing to stand my piece up against and to clamp it to. If you just hold it with your hands, as it appears in that photo, it can shift a bit. I make my own and usually use the table saw, but I've also made one for the router table and I have no mitre slots, it rides square against the router fence.