I'd like to share my thoughts on this particular product - Charge by Ecothrive
I've had a sample bag off my local Hydro Shop and I was just about to start a new grow. I was growing for cuttings taken from a mother plant so that should be a good comparison. I thought why not?
The sample bag was 300 gr which is enough for 15L of coco. So I mixed 15L of coco with that bag and filled my pot.

All for plants were to share the same growing space, light, nutrients. Basically everything would be absolutely the same for all them 4 except that 1 of them is loaded with Charge.
Plant Number 3 from left to right:

Few days later the plant loaded with Charge is slightly darker than the other 3 and slightly bigger:


The difference in growth is obvious isn't it?
A few days down the line they are moved into the flower tent. The plant is the One on the front left

And that's where all the differences disappear. Once I reached the point where I'd like to flip my plants they were all equal and same size.


My conclusion
Vegging:
This product will help you to keep a healthy plant during the vegetable stage. It slightly increases the speed growth and the nutrient uptake which as an awesome thing. Overall I think this product can save you a few days to a week of vegging if used on all the plants in your grow room.
Flowering:
In flowering I haven't noticed any difference from the other 3 plants. Flowering started at the same point for all 4 plants, and they all developed their bud sites equally.

Harvest:
I haven't noticed any kind of difference in the buds from the other 3 plants. I haven't measured exactly which plant how much yielded but they all filled storage units equally.

This is my honest review about this product. At the price of just under 10£ for 1L which will be enough for 4 x 10L pots full of coco it's up to to decide if it's worth spending 10£ to save a few days of vegging.

Link to the diary: viewtopic.php?f=26&t=1158