I do, i've currently got some plants going with it. my soil mixture is like 55% FFOF, 35% Ancient Forest EWC, 10% coco chunks. ive been using pretty much the whole GO Box line for this grow.
Veg:
i didnt really use the BioThrive Grow during veg because the FFOF has nutes integrated out of the bag. but i did begin supplementing the soil mixture right away with the Diamond Black (humic acid), BioWeed (seaweed), BioRoot (root stimulant), BioMarine (microbial food source). I also supplemented with Heisenberg's tea formula. It is the best!!!!!!!!!!!! check it out here:
https://www.rollitup.org/dwc-bubbleponics/361430-dwc-root-slime-cure-aka.html
Bloom:
As they started to pop into flower I followed the chart on the GO Box. gave them the BioThrive Bloom, BioBud (bloom booster), BioRoot, BioMarine, Diamond Black. Also foilar fed DM Liquid Light & Snow Storm Ultra with DM Saturator. When the pistils really started to come in (about 4 weeks after sticking outside), I took the BioRoot out of the mix. I also upped the dosage of the other ingredients to the Heavy Feeding formula on the bottle (about 4x what the chart says). They've responded quite nicely with no burn. I will likely continue to feed the Heavy Feeding dosage until the end of grow and final flush. They are fattening up by the day. And my OG Kush buds look amazing. All the thick white hairs started as a pinkish color, you can see in my avatar. But now they are white on the tips and a vivid red at the base of the hairs. Looks awesome!!!! i may add a little BioWeed to my next feed, only because the leaves on the OG Kush are starting to lighten up a bit, and i'd prefer to keep them until harvest. probably wont need any on my Grapefruit Haze, it is a solid dark green and hasnt changed color since veg.
Anyway just my experience so far with the GO Box. I really like the line, I know some people supposedly have had 'issues' with deficiencies or what not, but I have yet to see anything like this. I'll go as far as to say this is the best little organic grow kit, second only to something like Subcool's SuperSoil.
if anyone else has experience with the GO line, lets hear what youve discovered.
cheers,
mr.bond