I just purchased a GO! and am too amazed at how fast the cutting mat looks very used. After watching a lot of youtube videos I have discovered that you should rotate the mat as much as possible, boths sides can be used. Also if you have a static build up problem you can run a unscented dryer sheet through it along with your fabric, good thing to know cause I thought I'd have to send it back. Can't use something I'm afraid to touch and I was having a devil of a time removing the cut strips/squares from the mat & die. Youtube has a gold mine of videos to watch. Happy cutting!