Purchased for my home office on medium pile carpet. After 2 days of use there's cracks starting under the wheels of my chair. I'm under 150lbs and use about 6 hours a day. Quality is definitely not worth it.
This chair mat was easy to transport. Once I had it home there was no uncurling it started using it immediately. I use it in my sewing room it works great for me. I highly recommend this mat.