We have had multiple floor mats that have cracked and curled on the edges within a short time of installing them - even though they were the correct ones for our office situation. This mat seems strong and pliable enough to stand up to the rolling of our desk chairs. The underside nubs do a good job of gripping the carpet yet are not so sharp they are impossible to handle without getting cut. And it has a lifetime warranty!!! We liked the first so much that we just purchased a second for our other office chair.
The mat is just what I needed for the computer desk but it needed two people to get it positioned right because the non-skid bumps that hold it to the rug make it impossible to slide so one person had to lift the furniture and one had to reposition it. Once in place it is fine. My main complaint was that it came unwrapped or even rolled and was very dirty as if it had sat on a shelf for years collecting grit and dust. I had to vacume it before putting it in place and anyone who knows me knows I am not a "clean freak"!
The handles on this mat make it easy to handle as well as it being relatively light weight. It is helpful to have a second person to help unroll when setting up the first time.