If you need an inexpensive desk mat for your home office this is the one to get if you have low pile carpeting. I would not recommend it for a business office with heavy use.
This was a replacement for a cheaper mat so we do not know how well it will hold up under a years use. The limited lifetime warranty was the controlling factor in our purchase.
I have always used a chair mat under our computer chair in our den. The chair will not roll easily on the carpet and when the old mat wore out I replaced it with this mat. It is really nice doesn't have those ouchy sharp cleats on that old ones had and the chair moves easily on it. It's great and a good value.
We purchased 2 of these mats. After reading the reviews I was concerned that they would not lay flat. When they arrived I flattend them out one ontop of another and then placed heavy 5 gal. jugs of water on the corners and center for 2 days. After that they were completely flat and we haven't had any problems with them.