The Aquarium hobby is an old and noble one.
I feel that over the years, whilst other hobbys and areas of society have embraced technology and made it work for them - the fish hobby has remained relatively stagnant in terms of using modern technology.
Science and technology is progressing, I won't dismiss anything without investigation and tests. I'd hope that all the people that have so cuttingly dismissed this product have tried it themselves. Not saying it does work, not saying it doesn't - but it is very easy to be set in ones ways and simply dismiss anything new.