This is a decent mat for the price and keep my chair from sinking into the carpet however like others have mentioned the wheels leave indents in the mat. It is bearable and the mat is still usable so it’s not too bad.
It was good for the small bedroom wasn't exactly very heavy duty but I bought the lightest and smallest one at that was so I can't expect anything better
I replaced an old carpet/chair mat with one of the newer technology ones. It fits perfectly under my desk and chair area. It works just as needed to glide my chair and protect my carpeting.