All chair mats replaced after new carpet was installed. Purchased 2 different brands one was the Staples brand. The Staples chair mat had dents in it within a week to 10 days of use where the chair wheels normally rest when the chair is in use. We tested both brands for about 2-3 weeks and purchased about 8 more of the other brand since they seemed to hold up better. Used in an office setting where employees are at their desks for 8 hours a day. Staples brand would be great for a home office that gets used up to 3 hours a day.
I am dissapointed in the Matt in that the label on it notes it is for carpet so it should not slip (slide) over low pile carpet but it does slide into the desk legs and requires adjusting regularly after sitting at a desk and moving the chair around the desk.
The first mat I had from another source was absolutely terrible. It had a chemical odor and my chair sank into it. This one that I purchased from Staples is fantastic no odor and it supports my chair just fine. I highly recommend it.
Ordered several of these for our office and everyone is having issues with the plastic being too "soft" and office chairs are making permanent indentations that the chair wheels then are getting stuck in as we try to move. I know they're one of the more reasonably priced mats but they aren't even worth the cost.
This is good for low pile carpet (3/8") but the cleats aren't deep/sharp enough to dig in to prevent some sliding. I have to re-center it under my desk after a couple of days.