I think it depends on the type of quilting you are going to do. My cousin got most of the applique type dies and loves them but didn't get the shapes. I was the opposite. The Go comes with a standard die, in addition I got the 3 1/2 sq, 3 7/8 half square triangle, and the 2 1/2 strip (loved this one, could cut all the bindings, sashings etc in one swipe). I'm planning on getting more as I need them but this is what I needed to be able to make lots of standard blocks with squares and triangles.