Does a great job for the money on protecting carpet from computer workstation chairs that roll in a limited area. Limited compression despite thin molding. Great value!
Have used 2 of these mats for 7 years and they have served well. No moving around on the floor and no discoloration of vinyl. I have one on a hardwood floor under a computer chair and the second one on a very low pile area rug under a large desk chair. The one on the rug does not slide around much at all. As a side note.....I have a hardwood floor in my kitchen. To prevent denting my wood floor when I pull out my large refigerator to clean behind it I use one of these mats right in front of the fridge under the wheels -- works like a charm and the fridge rolls in & out smoothly. Works in front of washers/dryers too. I've seen appliance stores use the same type mat when installing appliances in homes.
These things aren't cheap but it was suggested to us that a mat like this might protect our rental deposit when and if we ever want to move. Working great so far.