It was a little thinner than expected and had roller dents after the first day of use but still a good value - the chair now glides easily over the carpet. The free quick delivery and that it arrived flat was also appreciated.
Purchased it on April 28 2019. Still have the receipt. By April 17 2020 it was cracked on multiple places where my chair's legs are. Use it on low carpet at home. I will be visiting the store asking about the manufacturer's 1 year warranty. However knowing how corrupt and greedy companies and people are I am sure the "warranty" is put together by "well established" lawyers and contains procedures where I have to pay like 82 dollars shipping - or some standard nonsense like that.
Within 2 hour of using this mat it had dents in it that made it difficult to move my chair. Now I have something big and awkward to return to Staples when the stores are closed due to 'staying at home' orders.