Bests & Worsts Reviews from Amazon

I purchased this to use on two rugs. The first is a brand new 9 x 12 rug over carpet in our living room. It wasn't too bad to begin with, but did "walk a smidge." We have two little kids and a dog so it sees a lot of running, jumping, playing and rolling (from the dog :). The rug was only a couple weeks old and some of the creases from shipping hadn't fully fallen out so it had ripples in places. I applied a strip of this tape around the perimeter of the rug as well as a line down the center. It has been a few days and the rug hasn't budged! Total success! The second rug is an 8 x 8 in our nursery, also over carpet. It was a hot mess and would bunch up as soon as you walked on it. I applied a line of tape around the perimeter and would have applied more but I ran out of tape. So far both rugs are holding strong! My only bit of advice would be to buy more tape than you think you need. If I were to do this again I would place tape all around the perimeter of the rug and then more through the center of the rug, either in strips or as an "x," to ensure that it would lay as flat as possible. It is sort of hard to go back and add more tape (not sure if you can pull this up and reposition it). While my rugs are holding in place, it was really hard to smooth out every ripple, despite having help, and this kind of annoys me.