I used it and would give it a 4 outta 10. I had a choice between that and the ttokyyo sus which I also had enough for a cycle. I took one shot of the ttokyyo and hurt for a week. So I gave the ttokyyo to my training partner who suffered through the pain because it was free. I grew a bit, He got huge! So I guess if ya really wanna get big ya gotta suffer through a bit more pain. I am back to the ttokyyo and sufferin for the size now.