Two of the commercial carpet manufactures involved with the Standards, love this method...
foamingfloors.com
Two thoughts:
1. Low Moisture Cleaning with a variety of brush, pad, scrub methods has proven itself more than enough to be acceptable for maintenance (and sometimes more). Surely this system could work as well.
2. That said: What manufacturers of carpet like when it comes to cleaning doesn't always pass my sniff test. ( I worked with several of them on committees in the past, including the original
S100)
In the past Host from Racine Industries, Capture from Milliken, and let's not forget Bane Clene as the preferred hot water extraction system were all touted as the best.... and how can we forget the Gold level that the Rug Doctor got from CRI? So forgive me for my Larry Capitoni cynicism due to that part.
Still, it would be interesting to see it used in real world situations by someone I respect.