It holds to the short nap of the carpet well. However it's not quite stiff enough to not leave indentations when sitting in one spot for very long. Nubs are too high - gives a bumpy roll under the chair. Other than that it's a good product.
This was perfect for our office needs. We have a vintage office chair with small wooden wheels/casters and we were having a hard time moving it on our carpet. With the mat it rolls a great deal easier! Very happy with it.
The mat is fine but it was rolled up and taped for pick-up at the store. The adhesive on the tape stuck to the mat and now my feet and chair get stuck on the adhesive. Not smart of Staples.