It came (delivered) quickly & in pristine shape. I ordered one for a low pile carpet but it is hard to roll after sitting in one position even for a short period of time. The mat tends to give under the weight of the wheels on my office chair and I have to roll the wheels into an alternate place on the mat in order to move around. It doesn't mark up from rolling over it but the indentations make the rating lower than I had hoped. BTW I am under 170LBS so my weight shouldn't have been a factor.
Developed cracks and was useless in less than 6 months. If chair indents when rolling this is wrong item to purchase and can only return to store within 30 days as I was advised when attempting to return disintegrating product. I do not recommend to anyone. Look for a higher quality polycarbonate product instead.