I just got a Martelli at a show. It's much thicker than the Fiskars and Olfa, reversible, and feels different and better when you cut. One side is yellow, the other a light purple, so all you have to do is reverse the mat if you can't see some fabrics. I had a Big Mat, it was OK, I have some Olfas around that I use for cutting mat board with an exacto. They work fine for that.