Does the job well
These track beds just work really well. They are easy to put down (cut them along the center for tighter turns) and provide a solid cushioning for the tracks.Just keep in mind that you will need foam glue to attach the roadbed to the base, and the tracks to the roadbed.
Better than Cork
I love the Woodland Scenics foam roadbed. It's far easier to use than cork, forms curves very nicely without kinking, and deadens the noise quite effectively. And the price point is perfectly matched with it's value.