Score: 06
EDIT : My communication with Zamnesia was complicated by technical issues which made things frustrating for both sides : some of their replies ended up in spam. As it turns out, they have immediately reacted appropriately to the quality issue with the kits. We received two kits in the same shipment and they never grew but developed mold after a few days. BOTH. Being tended by two different people. I had no reason to doubt the product quality on my previous shipment but this time, I can definitely say the kits were bad. What is worse, I have now been waiting for an answer from customer service for over two weeks. I'm putting two stars and not one, as a benefit of the doubt thing, since kits were sent as a replacement for a previous bad experience (the kits only gave out one flush, as the instructions on the PDF they provide was slightly misdirecting on how to treat the kit once the first heads appear)