I love it so much.  Feels fantastic under my Bradford area rug.  It is thick so get it smaller than the rug because it does make the rug stick up if the edges of each are in the same place.  A smaller size works fine though.  I have a 9x12 rug and 8x10 pad.  The only reason I’m not giving it 5 stars is that it’s so thick and cushy that my Dyson won’t work on it - not the stick or the real vacuum.  Not sure how I’m going to remedy that, but I’ll figure it out - I love the pad so much I’m not taking it up!