Seemed to be pretty good. Easy enough to use. My biggest complaint is the price. Reading the labels and descriptions, I'm pretty sure these are mostly cane molasses along with various additions depending on desired effect. For example, Bio-Heaven's enzymes come from sprouted soybeans. You can make a sprouted sea tea (SST) with soybeans or just slap a tsp of diastatic barley malt powder per 3L H20 for a fraction of the cost. Likewise, molasses + : Top-Max = Humid Acid, Alg-Mic = kelp powder, Acti-Vera = aloe vera concentrate... etc. All pretty standard organic add-ins, you'll just need to read up on the ratios.
If that's too much work, the packaged nutes work well.