Works well. Looks good in my office. My only complaint is that it slides when I move my chair in and bunches against my desk. Would be a better design if it would stay in place.
It is working fine even on a carpet. I did leave it out in the garage for a couple of days while it outgassed the rubber smell. It is much better than those clear plastic chair mats you usually use on carpet. The color is also very nice for where I am using it. I recommend it.