Forget about rez temps - the bennies love mid (and even upper) 70s solution temps. This aspect alone has cut my maintenance in half.
The roots and plant growth are greater than with any expensive product I've ever tried (and I've tried dozens)
Savings - the tea costs me just pennies to make, as I have a RO filter. Plus I use less nutes because of the improved nute/water uptake. On my latest grow I tried the same ppm levels I used before using the tea, and my ladies started to burn (although the tea itself will never burn your plants). I use about 30% less nutes now, with much better results than before.
Seriously, I never knew roots could be this healthy and white, the amount of lateral branching just freaks me out. Growing just got a LOT easier!