We just installed good quality home carpeting. The mat slides as the chair is rolled. I ended up putting roofing nails through the mat and carpet into the wood sub-floor. There are deep dents in the mat where my chair wheels have been. I suspect in time the mat will break at the nail points or where my chair wheels have dented it.
When I first saw the mat the quality and heavy thickness seemed perfect to use on my plush 1" pile carpet. But after one use I discovered that the mat is not sturdy enough to prevent my office chair wheels from sinking into the mat when I'm sitting down. This renders my chair completely stuck in plastic sink holes so my chair will not roll on its wheels. Bummer. In general however I would say that the mat would be a very nice quality mat for low to medium pile carpets but not high pile.