I purchased some ecdysterone and used it for a while. It seemed to help me gain some weight and strength a couple weeks into the cycle, but i was using it off of a long break from lifting so i am guessing it did give a boost and help me reach my old muscle memory quicker but after that it seemed to taper off. I think ecdysten might be underdosed. I was taking between 600-1000milligrams a day and everyone else who i have heard of that makes gains on ecdysterone is up around a gram at least. Some others take that much and don't see any gains.
Most people will just say it is bunk. Some people say it has some nice anti-catabolic properties for cutting and a sparse few out there will say it gave them a nice gain in LBM.
I have a feeling there is something to this stuff because it seems to work in a couple of animal studies and the all famous "soviet study"....but the one animal study i saw where there was a marked increase in mass i think i remember calculating it out and a person would have to take like 8 grams a day to match the dosage. As for the soviet study there seems to be a lack of details as to the method(oral or injection) and level of dosing.
It would be great if somebody could come up with a version that made results equal to the soviet/russian study, especially since it seems(for now) there are no bad side effects and has an extremely low toxicity level.