I have no intention of using the same mat for 20 years. I have every brand of mat except the Quilter's Select one. I have the Omnigrid no line 36" mat on my cutting table, made for Fons and Porter. It's been an excellent one. I have Olfa, Fiskars, June Taylor, Polar, Sullivan's, and a few drafting cutting mats. A few I forgot the name. All work fine. Hard surface mats, the rotary blade roll on top, the self healing, the blade has to cut the mat for it to heal. I buy a mat when I see one on clearance. I have two or three big ones behind the bookcase for future use.