I've had this for only a week so I don't know about the durability but it is thick and seems very sturdy. There is a little resistance when rolling the chair because the rollers make little indentations in the plastic; these disappear within a few minutes. So far I like it.
The plastic is cheap and thin. The wheels of your chair make deep immediate impressions. Advertised for deep pile (3/8”) it is really only for very thin pile. Bait and switch. Annoying to feel so ripped off. Don’t buy a mat online—you have to feel it to know what you are getting. But few stores have anything physically in stock. Good luck!