We got this all rolled up but we laid it down and put a dictionary on one corner plus the desk chair and it laid flat right away. Durable and works great.
The pad was rated for medium carpet pile. My Carpet is medium. The pad walks the prior pad that I had never had to be realigned this one requires it about every 4 days.
This mat is a replacement for the same mat that lasted 15 years. It has a 1 year warranty. Definitely got my money's worth from it & hope to do so with the new mat. Extra bonus it was on sale for $10 less than the previous store price plus I had a $10 off for $20+ purchase.