I was going to leave a bad review of this product, but after reading some of the other reviews I am going to try again. And I WILL leave another review if it works out! I have read the directions, changed blades, and tried over and over to get this to work, but it just hacks my paper. I just want a simple circle!!! I did give it three stars, only because I am sure I am missing some finesse and just not getting it perfect. I would hope with such and ingenious design it would be a bit more user friendly... but I can still do better with just my exacto.