Loved the P.H automation but too many bottles to handle and always spills of the cap when you shake..
Now if they work or not have little clue, the only time i grew before and came across nutes was years ago with a few known and unknown brands and cfls instead of hps so nothing really solid to compare with and have an opinion even though i guess they might work in a helpful way with those boosters not just this company but most..ok dont get me wrong...i used full strength and half strenght and plants seemed to enjoy it.... But i feel genetics is the most important factor for bud quality, then good environment control to keep those genes aliveand then feeding for gains....if this brand is better than other im not yet in a position to say.