Pros: Extremely sticky, adheres well. Excellent job of dampening resonance of sheet metal. Much better radiant barrier than I was expecting.
Cons: Fairly expensive. Hard to remove.
Comments: This stuff does a really good job of dampening the resonance of sheet metal and of blocking radiant heat. It is pretty easy to install and adheres extremely well. The one drawback is that it adheres so well, it is hard to remove. You need to be sure of where you want it before laying it down.