I got the 3X5 rug to use as a door mat.  It is very soft and feels great to walk on.  Since I put it on hardwood floors, I put a thin rug pad underneath it.  Without that, it slid a lot when I walked on it.  This rug has taken a while to lay flat. I put weights on both ends the first day, and now, 3 weeks later, it still curls up a little bit on the corners.