The carpet looks good, and lies flat (except for a couple ends that got turned over in the package--hopefully these will straighten out.   The rubber backing keeps them pretty well in place, although they do move an inch or so under traffic  and have to be repositioned.  But I really didn't want to deal with carpet tape or tacks, so these are good.  We mainly got them for our old dog.  He seems to like them.  I bought an extra set for another stairway in the house.