I kept on hearing nothing but good things about this product on a podcast I listen to on YouTube called Wake & Bake America. I ordered it because I heard it was as close to a silver bullet for lockout/deficiency problems as there is. By the time it arrived (around day 50ish), I was seeing evidence of lockout and/or signs of a couple different deficiencies starting to develop on multiple plants. I used this stuff as a hail mary and sure enough, within 48 hours, I did see improved plant health as guaranteed by Real Growers. All these wicked microbes seemed to regulate the nutrients being taken up through the roots and I was seeing vibrant, heathy greens returning my plants within a couple of days.