I expected the mat to have beveled edges and be a little thicker for carpet. Because I have thicker carpet the mat isn't as functional since the chair sinks into the mat itself which eventually will crack and need replacement. But it's better than trying to roll on the carpet.
Very disappointed tape used for shipping. Mat was rolled up for shipping but it was taped with a nasty economy packing tape that shreds when you try to remove it. Took over 20 minutes to remove all the tape and residue from the mat. Last time I had one shipped it was wrapped in shrink wrap plastic taping making it easy to open and not leave any leftover tape and residue. Although mat is for high pile carpet it still dents when sitting in chair all day and the chair sticks in the ruts.
It does the job of protecting my carpet but leaves deep depressions from my office chair and I does not allow the chair to roll as freely as my previous sturdier mat.