This mat is not as durable as my old one. The chair leaves "dents" in the mat which makes rolling to a different position difficult. I would not recommend it.
Although the mat feels stiff the five-caster chair still presses into the mat and make moving around difficult if you sit in one position for ten or more minutes.
I would have given it 5 stars but I think the height/consistency of my carpet (even with the mat) is still an issue for my chair to roll over it. However its still better than my chair attempting to just roll across carpet lol.