Purchased 5/13/2015. Barely made the year. Cracked over all creating holes through to carpet by June of 2016. Staples would not stand by product for return because it was 31 days past manufacturers warranty. This type of product should not be disposable it should last years. My recommendation is to order these somewhere else. First time Staples let me down. Stick with consumables that they do not have to stand behind.
I bought this chair mat bbecause it has a lifetime (limited) warranty. Before buying Staples Customer Service told me that the warranty DID include chipping and breaking due to normal wear & tear. I have had it for about 10 days and it is satisfactory now. The test will come in a few years to see if it holds up to regular use.