it is for lighter usage...but I use a rolling office chair on lower pile carpeting and it works great. It could be thicker because it does indent when your chair rollers stay in one place for awhile...but does seem to rebound after a time. Compared to the other expensive choices I think this is a great bargain. If it wears out I could by 3 for the price of the next price range at Staples.
Only one drawback and that is where the packing slip was glued on to the top of the mat. 30 minutes to try and remove it and the glue. Still unable to remove the glue so shoes stick to the mat every time you touch the area where the glue was. Would not buy again only due to this sticker being on the top instead of the bottom of the mat.