I haven't tried any of the machine quilting classes, but I did look through the hand quilting class they have now. It is excellent. I think it helps to see how the stitch is made, more with hand quilting than by machine. I was impressed with the way Craftsy produced the class, that you can go back and watch it as often as you like, and rerun parts.
So now I'm thinking of trying one of the machine quilting classes.
Janet