Cracked the old chair mat in my home office and needed a replacement. This mat is perfect. The barbs on the bottom are the perfect size for my lower carpet pile. The area covered by the chair mat lets me roll the chair to reach both sides of my corner wrap around work area. Delivery was quick. All around a good product and a good shopping experience.
I bought two mats and then went to an appointment that lasted about an hour. When I got back to my car the strong chemical odor was overwhelming. I rolled down the windows but within five minutes I had a sinus headache. I tried one of the mats in our office hoping the smell would disappear but it did not so I returned both that evening. I work from home and there is no way I could have tolerated 8-10 hours/day on that mat - nor was I willing to risk the health of my family. I was surprised as we bought our original mat from Staples and had no problem.
This is a very nice chair mat. However I see what other's said about the chair wheels making divots causing the chair not to roll very well. Other than that it's a nice mat.