I love this chair mat! I was apprehensive about buying one but I'm glad I did! My husband took over a desk and with the rolling chair the carpet was just beginning to lump so the mat took care of it!!
This would have been great if my carpet pile was thinner. I am going to order one for a thicker carpet. Plus my husband is over 200 pounds so that is another issue.
I have a rolling office chair and a hardwood floor. This plastic mat fits right between the two. I don’t notice any difference in how my chair moves so there’s that.