I use the binding tool on every quilt I make. Maybe it is because I am left handed; but until I got the tool, I'd have to rip and rejoin the binding 3 or 4 times before I got it right. I'd watch videos, look at printed instructions; but still had problems. With the binding tool, my bindings are joined correctly the first time, every time. Needless to say, I love that tool and it has been worth the cost to me.