No, I have not got around to it yet, been and are prety sick still (lymes/tick-bite), so wery litle action, since I came over the book.
You find americans on this thread that use it, and phone number to dr. Novak, and he gives the advice/help free off charge.

http://www.koiphen.com/forums/showthread.php?94835-Anoxic-Filtration.

I am planing a RAS when I get back on my feet and it will be a hybrid. Principals from 1. generation ERIC (setelling and brush camber) for mecanical filter , and anoxic for the biofilter.
As CB1 points out the cloging and cleaning is the draw back on most filters, that is not an isue with such hybrid.
And the hole thing I can build off scrap almost free.

It has a footprint yes big ?? the eric chambers are easy to hide long shalow/narow chanels
The anoxic bio filter are ornemental beautyes if set up right, and can be a water garden (aquaphonics) if wanted.
Space is not a problem here got plenty,however temp. C/F is and anoxic biofilter keeps doing the job even below freeze where as aerob/anerob bio filters drop in eficensy along with faling temp, and would have to be heated 4-6 months off the year around here and/or inside a insuleated building.

Video clip from a DIY ERIC from a Norwegian koi freak
http://www.youtube.com/user/topaha#p/u/4/bS-f__5NeOE

A good book to read on pros and cons off differente types off filters is published on Waddys home page the author is dead.
http://www.koikichi.com/alans-book/page-2.php


PAUL