It is working fairly well except I wish I had gotten a thicker one. My carpet is short pile. If I sit for an hour my chair is in shallow indents that I have to push to get out of.
VERY disappointed with this mat. It's light-weight does not stay in place chair canisters become stuck in the many divots can trip because does not remain flat etc. etc!! Have since researched and purchasing hopefully a much better quality mat. DEFINITELY WOULD NOT RECOMMEND.
My old one about 13 years old was getting a lot of cracks from chair wheel pressure. This one seems sturdier. It was not difficult to place because my cabinet is on wheels so I moved it out of the way and then the wheels carried it easily over the mat. It is not showing any "dents". I use it daily at my sewing machine with desk chair on wheels for several hours at a time. I am very pleased. If I can get another 13 years that will be wonderful.