Quietwave - any opinions?

I searched the forum for info about Quietwave, but there is nothing since 2008 and that was largely a discussion of their published material. viewtopic.php?f=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).