Originally ordered this Chair Mat to replace one that was falling apart. It had also been purchased at Staples about 10ears ago. I expect that this one will last just as long.
I find the office pad I bought is a little thin using it on a carpet. It would be fine if I was using over a hard surface floor. I think the for mats should be shown that it be used over a carpet or a hard floor. The difference being the one I bought is to thin to use over a carpet since it sinks into the carpet and stiffer one would not sink into the carpet.
While the mat doesn't quite work with my L-shape desk (the smaller part doesn't quite fit far enough under the desk to protect the carpet where my feet sit) it is a sturdy mat that looks like it will hold up to extended use. It has also stayed in place on my medium pile carpet and not moved as I have rolled around. I have a fairly large and heavy chair and the mat is not developing any grooves or dips. I hope it will hold up to my first impressions!