The chair mat looks great and it is easy to move your chair around on. It is a nice thickness and as far as leaving rolller marks it is not that much. I would definitely buy again. Great quality.
The mat "walks" on the carpet. I have to adjust it a couple times a day. I don't have a deep pile rug and the wheels sink in. I tried to save a few bucks now I'll have to spend more for a better one.