Quietwave - any opinions?

[Manning]

I searched the forum for info about Quietwave, but there is nothing since 2008 and that was largely a discussion of their published material.
http://www.johnlsayers.com/phpBB2/viewt ... =3&t=11411

For those who have no idea what I'm referring to - this is an "acoustic membrane" which is sold in a sheet. You affix it between 2 sheets of gyprock/sheetrock/drywall, and (according to the brochure) achieve audio perfection instantly.
http://www.acoustica.com.au/quietwave.html

So, it's a good few years later, and the product has been around for a while. Has anyone used it? Is it of serious interest to the audio industry?

(FWIW: I run a commercial studio, but I want to build a vocal tracking booth at home, and so I want maximum absorption for minimum dimensions... just like everyone else).