I have heard that the Simplicity rotary cutter does not cut very accurately; I would skip it. However, many people with arthritis and other problems really like the Go, and you can cut strips with it also. One woman posted that she pre-cuts the fabric with an electric scissors for the Go. Electric scissors do not cut accurately, but would be great for this purpose.
Hand quilting requires repetitive action. If you decide to take this up, you should probably investigate some of the newer methods that keep the wrist in a neutral position. The Thimble Lady from Australia has a method like this:
http://www.thimblelady.com.au/