After only a few days of use the mat is already dented by the wheels of the chair. I am 230 lb but my wife who uses a separate mat is much less and both mats are dented by the chairs.
The new chairmat works much better than the old thin one that sagged and made it hard to move the chair. With the new thicker mat I can roll wherever I need to go in my L shaped work desk area.
My experience started with Staples' website to check out size options. Next I went to the Staples near me to make a purchase. A store employee noticed my struggling w/the floor mat. He pointed out my choice helped me by bringing it to the register and even got me a cart to help me get it to the lot. The floor mat is exactly what I needed and the overall experience was a 10/10.