I think I over emphasized my negative tone about the Silva. Its a GOOD product, but it shouldn't be $99. I get bombarded with "Green Products" through my job, and I'm required to have 18 hours of continuing education (annually) to maintain my license. Some of those hours are must be "SD" (sustainable design). From all of this information, I know how inexpensive the films have become. My Silva feels like a $19.99 product from WalMart.
It does work though.