This didn't even last a year. Pieces of it started coming out. It's made up of little squares not one piece that you can roll on for a long time. Once one piece came out the rest all started coming up. My chair would get caught in the little squares that were either coming up or missing. Staples products have really gone downhill!!!
The floor mat was delivered quickly -- and in a box -- and flattened under my chair without trouble. It's on a medium-pile carpet and so far is tolerating my desk chair with no problems at all.
I needed a new chair mat since mine was cracked and falling apart. This one is a great price but you do get what you pay for. It's thinner than the last one I had and I can definitely feel the bumps each time I move my chair. I am using it on low pile commercial carpet. Hopefully it "settles" into the carpet and I won't feel the bumps but if I had known it was this thin I would have ordered a better one instead.