I have Olfa mats, including both sizes of the rotating mats, which I like. But today I bought a Fiskars rotating mat at JoAnn's with a 60% off coupon. I'm thinking I would like one that isn't so dark, and the Fiskars one is a light grey. The size is between the 2 Olfa rotating mats. I haven't tried it yet, but it says it's self-healing, so I have high hopes for it.
Leslie