I like this mat for my home office. The size is big enough and the mat holds up well even with daily use. I have found that it is important to keep the mat from getting bunched up or crunched up against the desk legs a wall or another piece of furniture. When this happens for a period of time the mat takes on a new shape and can't be returned to it's original flat shape. Then you buy a new mat and write a review similar to this one.
I've had this chair mat for 2 years and it recently developed a crack. I took some pictures and sent it to ES Robbins and they made good on their warranty and sent me a replacement for free! Thanks!
Our chair map was dirty and also had a scratch on the underside when we picked it up. The sales person blamed it on the delivery service. I took it anyway because the price was good and it was a "chair mat." My husband didn't agree with me.
It's OK but it still creates dents that cause the chair to roll back into them if you don't move a reasonable distance away. They do flatten out though. The mat also walks on our 3/8" carpet. This being a thicker mat I was hoping the walking and dents would not be present.