It teaches you little, it yields little, it takes far far too much patients and it is masquerading as easyeasy.
The technology was designed by a man who came up with a brilliant idea. Spore syringes.
But how does one make money that way? So he figured this tech would do it. He advertised that you should use one ten dollar syringe per jar, if I recall.
Now he was brilliant, he made a fortune, he went to jail and he is dead.
I admire him greatry and there is nothing wrong with making money but somehow he managed to convince people this was the best for beginners and it was easy.
If you don't want to buy a pressure cooker, then this is the way to go. I'll give him that as well.
But do you know even a beginning hydro guy without a pH tester?
There are some essential tools of the trade, a pressure cooker is one.
Contrary to what one or two people contend, that sticker has all the information and instructions you need to start a new hobby or just attain a different level of consciousness