I’ve been using my (white) one from Joanne’s for qr years. Although it’s not self healing it has held up quite well, and much more affordable. It hasn’t dulled my blades any faster than my green self healing mats. I tend to use the whole mat so I guess the wear has been evenly distributed. My lqs ladies told me they had to replace theirs every 5 years or so because they cut yards - same line on mat over & over all day, every day. They turn it around every so often to change that line but it still wears out with time. My lines are fading, but still can be seen & used. I’ve worn out self healing mats faster with much less use.