I have had my accuquilt GO! for about four months and love it- the accuracy is wonderful, and also the speed with which you can cut out a whole quilt! Some people have complained about fabric wastage, but I find with careful placement it is not a problem (not to mention the wastage I was getting with bad rotary cuts!)
The customer service is awesome- one of my dies kind of fell apart while using it for the first time, they sent a brand new one right away, I didn't even have to pay for shipping, and they were very pleasant and helpful. They really seem to stand behind the product.
I had severe carpal tunnel syndrome, and found I could use the machine comfortably even before my surgery!