Coco has a pH of 5.2 to 6.8 naturally that's why it's so good. Unless its PH'd outside of that range its a gimmick .And it drops all the salt when you buffer it CalMg is it's preferred element so it drops everything else in favour (incuding sodium)of it, put it in a pot and rinse done. when people pay top dollar their paying for a $ 2.50 process. I grow indoors I like to grow different ways to keep up with trends last round I done RDWC before that soil before that coco and perlite now back to coco this round. I'm just saying this is MY favourite coco and I know there's a few blokes on pensions and guys starting out that can't afford brand name stuff