I don't think it's very sturdy or will be long lasting. Its too thin and my chair leaves indentations when it rolls. I've had it 3 days and it looks like its been here for months. Its not the right product for people over 150 lbs or that use it repeatedly.
The flat pile Carpet Chair Mat was "okay". It could have been little thicker since the chair rolls and the mat bends as it rolls. The carpet is Berber so it should have worked better since the carpet is flat.