The mat is incredibly thin and will not hold up with constant use. I’m not overweight by any standards and after sitting in my chair for an hour - the indentations are significant.
I bought this to replace one that was cracked and my chair wheels kept getting stuck in. Although this has no cracks the chair sinks into a location and won't roll unless I stand up and take my weight off the chair. I don't recommend this one. Worth the extra money to get a firmer one which will allow your chair to roll on it.