This mat made my nice desk chair a pleasure to use! It is a perfect size and the chair easily glides on top of the mat. The smooth side of the mat was quite dusty and needed to be thoroughly wiped. Also there was a very sticky large label that was difficult to remove. Had to use acetone on the residual adhesive.
This chair mat must be marked incorrectly. It is extremely soft and the studs on the bottom are very short... certainly not for a medium depth carpet. The empty chair makes divots just sitting there.
The shipping and product stickers left two large (7"x9") glue residue spots on the matt that make it very tacky. Now my socks stick to the matt. The matt has a bit more "give" than I'd like. Its supposed to be heavy duty yet my wheels leaves divots that take overnight to relax back. I know I need to loose a few pounds but I really expected a bit sturdier. Overall It does the job but I would not buy it again nor recommend it to a friend.
Nice size mat but very thin. I'm using it in my home office which has typical builder grade beige carpet. The wheels indent into this mat so much that I can't wheel out of them without getting up and pushing my chair. This would likely be great a bargain for use on wood floors.