Mat seems to be very sturdy. Thought it might be a little large but turned out to be exact fit for where I needed it. With the $25 off it was a great buy.
The plastic is very thin and does not give good support. The wheels on my chair sinks creating a low spot. This makes moving the chair very difficult. I weight about 200 lbs and that might cause some on my issues
In just a week my chair has formed near permanent dents in the so-called carpet mat. The mat is clearly substandard and cannot be used on anything except a hard floor. Very disappointed.