Thank you for the review! I bought one last week also with the Joann's coupon but haven't had a chance to use it yet.
I am making a "Peace Symbol" Quilt for my dgd and I thought this would make it much easier.
The only problem I've seen so far is that it uses an 18mm rotary blade, which my Joann's discontinued. I ended up ordering them from my favorite LQS,
http://www.joyfulquilter.com/ which is having their ribbon cutting ceremony this weekend. They just built a new shop twice as large as before. It's good to know that there is enough business that they won't be closing!
I love that place and can't wait to use the cutter!