I tried to cheap out on the basic "waffle" grid rug pad. It was....ok. I finally decided to get a decent pad and yes, it DOES make a difference. The rug lays better and feels thicker. I had a difficult time determining the difference between "Deluxe", "Superior", "Supreme" felt pads but was able to find the thickness differences in the Q&A. I bought 2 pads for different size rugs and had to cut one down. It wasn't too bad with a scissors. (The edge is not as crisp or perfectly straight as the non-cut side) But it's underneath the rug and doesn't show. Yes, it was worth it!
This is a great rug pad especially for the money. At first when I laid it out on the floor, I was concerned that the wrinkles would show through on the sisal rug I was putting on top of it would show through. After a day or two of laying out flat and placing the sisal rug on top, no wrinkles. I had to trim off some of the sides of the pad because my sisal was a 9x12 and this pad is a 9x13, a little tough to cut through but not bad. Just shows that this is a quality product that I would purchase again.
Bought this rug pad to fit under my 9'6" x 13'6" rug, also purchased on Overstock. The pad is just the right size; I had no need to trim or cut. I selected this rug pad after reading reviews on several competing items at Overstock, and this one appeared to be most highly recommended. My rug stays in place and is wonderfully soft to walk on. As usual with Overstock, it shipped and arrived within a matter of just a few days.
Item arrived 2 days after order placed, in good condition. Not difficult to cut with good scissors. Placed under expensive Persian rug. Feel great, enough cushioning for heavy dining room table above, as too much cushioning will damage the rug.
I have hardwood floors and all rugs require a rubber backed pad to keep from sliding around in my house. I got this pad because it was also felted and a bit thicker for the family room where my grandchildren play. It's been great. I chose to cut it my self to fit (this was easy to do as I have a heavy duty pair of scissors). I would say it's worth the money.