Unfortunately my chair does still cause the mat to slip somewhat. The previous mat must have been meant for very thin carpeting so this new mat is an improvement. I had hoped to not have to move it into position at all but I do--about every week. My carpeting would not qualify as thick.
I have what I would consider a low pile rug and my chair rollers still sink into it making it a little difficult to roll sometimes. I had tried the low pile chairmat and it was horrible this one is better but not great .