I had shoulder surgery and I am starting to lose some strength in my arms. Of course, age helps it along. But I have considered this and the Go because of it. I just cut all those pieces for the Mystery quilt and I had to take breaks and a few evenings to cut it all. I sure hope I can keep cutting for a long time but some people find it good and I might in the near future. I do have the Martinelli cutter and one ruler and love it but I need an edge to use and the one I have is the strips inside the ruler. I sure used it for the WOF and the binding. I want more of their stuff.