I bought the tool about 4 years ago because I struggled with finishing up my bindings. I love it and have given up on all the other methods that have been recommended to me. I use it on every quilt now. I do have to day that you use the method that works for YOU and this tool works for ME. The tool is also good for other blocks that require that same angle. For me, it was worth its cost. I fell I have broken even and more on the cost of tool.