Purchased to protect the carpet floor in a new apartment with an area rug between this mat and the carpet floor. It flattened easily and without cracking. I've used it for about a week now and it's standing up but it's hard to evaluate long-term protection and ruggedness. There was some initial indentation where the chair wheels rested on the mat which made me anxious about the mat's ability to withstand weight but it has since sprung back and settled. Store pickup was a little awkward -- as if my store didn't recieve a lot of online orders.
This mat is ok for the price. However it is of very thin plastic and mine already has big dimples in it from the office chair rollers. I don't think this mat will last for many years. The other mat I owned previously was not flexible but it was much thicker and lasted over ten years.
I finally had to purchase a new one of these for the office but the one before this purchased lasted 32 years! Very good quality and a necessity for protecting rolling chairs and carpet.