I have this in one of my buildings and I agree it's easy to install and does seem to work good. I was pleased with it for the first few years, but now I'm not and wouldn't recommend it.
After 5 or 6 years it started falling apart. The white backing material cracks/flakes off in little round circles (same size as the bubbles) and it looks bad. It's a never ending battle trying to keep it cleaned up.
There are several areas were it has started to pull apart and sag. I have also noticed that many of the bubbles have busted and I doubt it has much value any more.
I'm going to cut it out and replace it with foam.