I have all brands of cutting mats, I even have the Polar which is super nice but my go to for a big mat is
June Taylor hard surface mats. They last for years.
It's the same surface as industry cutting mats
that have to last as long as possible before replacing.
The rotary blade rolls on top of the surface not cutting into the mat.
My blades gets duller faster using the Olfa or Fiskar mat.
Martelli mats last a long time but it does gets cracks in it.
The Polar mat is a cross between the hard surface
and self healing, thicker then the other mats.
Excellent. The one I have I bought years ago from Quilter's Rule. Int'l.
I will buy another the largest I can if I ever find one again.