The mat is much too soft. The wheels on my chair make indentions in the mat and I can't roll my chair very easily. It also won't stay put on my carpet....keeps sliding around. I have to readjust every couple days.
measured the carpet pile to pick the correct mat. if I sit in the same spot for a few minutes the wheels cause a dimple in the matt. it takes a push to get the chair to move. the dimples come back to a flat surface but not easy to roll around on.
I'm 6'2" 220lbs and already there are massive dimples in the mat...almost like dents will keep an eye them to see if there is any cracking or perferation in those areas...and keep my eye on the warranty and glad I used my AMeX card because it doubles the warranty...probably only 30days... I guess you get what you pay for