The warranty is only 3 years Not lifetime as stated. Your out after 3 years if it cracks. Look elsewhere where there is a real lifetime warranty and you can get proper service..
I have had many chair mats through out the years. This one is finally everything I expect and more. The size is perfect and the thickness and crack resistance is the best. I would recommend this chair mat to all my business colleagues.
As I added under "cons" If chair has small wheels mat will crack over time. This is the 3rd mat I've purchased due to this. Larger wider wheels would negate the situation so the problem is not necessarily with the mat!