This one is replacing another mat of the same type. The other one lasted for well over 7 years before needing replacing. I consider that a pretty good product seeing as it is used daily. The only thing I didn't like about it is the fact that it discolored.
i ignored the reviews about the mat sliding and i regret it now. it's getting on my nerves. the mat continually slides forward when i scoot my chair forward. now the mat is permanently warped/bent from having repeatedly clashing with the base of my desk. i cannot flatten it out. i might have to just take a scissors and cut out this warped area. i had another similar mat for 10 years and it NEVER did this.
I bought this to replace an older one and since my carpet is thicker I went with the thicker version and I'm glad I did. Good quality and priced reasonably.
This fits well under my desk and does a great job protecting the carpet from my desk-chair's wheels. I do wish I had bought a larger size but that's not the manufacturer's or the retailer's fault - I would just recommend that you measure the area you want covered BEFORE buying this type of product to make sure you get the best size.