I absolutely love my GO cutter. I've had it for about 2 years. Once I broke the handle - all my own fault - called them up and in 2 days I had the replacement handle and explicit instructions to install it. Also had a note that if I did have any problems installing the handle to please call them and they would walk me through it. Being as the broken handle was all my fault, I was very willing to pay for the replacement handle. They said absolutely not - so the whole process was free.
You can cut your quilts out so much faster, and the pieces fit so perfectly together so you can piece the whole quilt much easier, too. I cut over 450 2 1/2" squares for a 9 patch quilt in about 1/2 hour.
Did I say I LOVE IT?