The floor mat in our den is a good buy. Our carpet is thick so it does leave an indentation but it recovers after we leave. Value is good for the price.
I bought this mat one year ago to the date. Today as soon as I sat down in my chair I heard a loud pop noise. When I looked down the mat cracked. This will not be a long lasting mat. I've had no issues with it until now. I would not buy this item again.
Whatever this thing is made of sucks big time. If you stay in one place for to long the wheels get stuck and then there are little dents where the wheels were.