My initial reaction to this mat is very favorable. It arrived flat and had no odor at all--issues raised on some of these mats. The chair wheels do create dimples but they smooth out after the chair is moved. I have medium pile carpeting and this mat seems heavy enough. Time will tell how well it holds up.
These protective floor mats are good value for the money. Best of all they were promptly delivered flat and ready to use to protect our wood floor from office chairs.