After 1 day it hot divets in the pad from the desk chair that the chair gets stuck in. They aren't even in the best place to work from. Might return it
I've gone through countless less expensive chair mats over the years and this one is by far the best at several things. 1st it is thick enough that the chair rolls very nicely on it. 2nd in my application it does not creep. 3rd even though it's not a huge deal I don't miss the pointy spikes on the bottom. The ribs seems to work fine. Time will tell this is the 1st chair mat I've bought that comes flat not rolled. Hopefully that says something about the durability. Very please.
This is not meant to be used on a carpet with padding who doesnt have carpet with padding underneath? Guess they are referring to rugs not carpet. Less than 4 months of use and cracking everywhere. DO NOT BUY unless its only going to only on a rug. Descritpion needs to be updated to clarify this.