I was disappointed at how easily my chair wheels sunk into the mat. It makes it hard to roll out and around on the mat. I'm afraid it won't last long before it begins to crack up. It needs to be thicker/heftier.
Perfect size for the "L" shaped desk but it is at best a flimsy product that is way over priced. Do not purchase with the limited manufacturers warranty in mind. At best expect less than a year of use. Our carpet and pad is about 1/2" thick on top of c concrete slab so this should be ideal and never break apart but it does so quickly.
I have an "L" shaped desk and this chairmat fits it perfectly. Unfortunately it is paper-thin and my chair gets stuck in deep ruts. Had it for one-day and am returning it. I will be attempting to replace it with a rectangular chairmat of at least .11" thickness.