We use this mat on our hard wood floors. We are at the computer every day. It works great. The only problem I notice is that it slides around. I am going to try to figure out a way to keep that from happening. For now I just readjust it every couple of days. Great mat for the money!
I chose one of the less expensive floor mats as a beginning point. This one would be fine on low pile carpet with very thin or no padding. I am not heavy and the chair wheels sink into the mat and into the padded carpeting. The good part is the mat is sturdy enough it has not cracked in the 2 1/2 months of ownership.