It looks good and grips well on my very low pile carpet. Of course I've only been using it for a week -- companies always ask for ratings very quickly -- so there's no way to predict how good it will be over time.
The. At arrived on my doorstep with no packaging aside from the shipping not8ce. There was no label or warranty info. It saws unwrapped ...just leaning against my door! I made sure to get it to room temperat7re. It may a bit flimsy but time will tell.
I purchased a low pile carpet chair mat. It is clear. I selected one that would be delivered flat and not rolled. The desk chair moves over it freely but it does dent after you sit in the chair. Then you have to force the chair to move on the mat. This is the drawback.