most of us that really knock MG stuff have our own very good reasons why we dont use it. i mean why would i go spend a fortune on soil if MG stuff was good to use and so much cheaper. if that were the case i would use it and so would everyone else probably. fact is that experienced growers that get the chance to use other products over their years will end up pushing MG stuff to the bottom of the list. also this isnt normal indoor/outdoor house hold flowers we're growing here. not that MG stuff is bad, its just not suitable for the particular plants at hand.
and btw as far as MG helping people start growing sooner....MG tends to be one of the leading causes of plant death by noob growers...just saying...