The process for measuring, ordering and installing could not be simpler. Everything was well explained & easy to understand. There was excellent communication with the team at Indow Windows every step of the way. It was also clearly stated that there would be a small benefit to installing this product with double pane windows, which is what we did. And unfortunately for us, we did not see major advantages with the product. But noise aside, it helps insulate excellently. Superior service, great quality product, just our luck with minimal change to our noise situation.