Well, I wouldn't really call that great - for many reasons - but there is no doubt it is quite interesting, thank you very much for sharing those links!
Rubbish
You need to spend hours and hours trawling forums where you will read every possible opinion, some backed up by "facts" obtained by questionable methods, after which you will be so confused you will wisely decide to stick with what has always worked well for you before and conclude that the grass is not always greener on the other side, unless you have tweaked the filtration of course.