This is my second one.
I find that the wool pressing mat will return the heat from the iron better than a regular ironing board cover. Consequently, when pressing seams and using a clapper to set, the seams will stay flat and look amazing. I wish I could find a very large one for pressing yardage before cutting and for final pressing the quilt top before taking it to the long-armer. I even take this with me to quilting retreats. It’s a great tool to have in your quilting arsenal.