I got the Accuquilt Go Big (electric one)2 Christmases ago and love it! I have arthritis in shoulder and hands and found cutting a whole quilt caused so much pain that then I wouldn't be able to sew. i started with the strip bundle (6.5"; 3.5",4.5", 2.5", 2", 1.5", 1") and use it every quilt it seems--you can do a 2nd cut and do squares and rectangles and diamonds on them too. I got the Qube (12' since that's the size I make most often) and the Qube Companion last Christmas and love them too. I had the opportunity to purchase one of the Board member's dies (she was switching systems) and feel that I have all the basics now! it's so much fun to cut a quilt in hardly any time at all.
And it's so accurate! That was another thing I struggled with, especially as my hands would start hurting. I recently used the drunkard's path die and got those perfect curves with no tucks and used 2 pins! so YES--it's been worth it to me!