Pros: Nice and thick! Makes the rug feel cushy soft. No noxious smell. Rolled out nicely with no bumps or wrinkles. Quite sturdy and compact which you'll notice when you try to trim it. Cons: Had to trim the 8x10 down to fit the 8x 10 rug. Looks like they'd make it a few inches smaller than 8x10 to properly fit under the rug. A utility knife and heavy scissors came in handy. Not an easy job for elderly. But happy with finished product. Holds rug steady, no sliding around.