After much thought (I have RA in my cutting hand) I finally got to try a GO at my LQS. For me, and just me, I cannot justify the huge cost in machine and dies vs the benefits I would get. It was a little tricky to use with one hand in a brace and was hard to turn and guide with 4 or more layers. And it only solves one part of my problem - I still need to cut to square up blocks and quilts. So I invested $20.00 in a new hand brace and am trying different rotary cutters and will see dr. to get change in meds. And wait for the next generation of cutters. And get an iPad instead!
My opinion and my opinion only. I would definitely say that you should try before you buy.