So far, It's actually awesome. Just 8 days in on the Masteron. I was told if i started it from the beginning I wouldn't have the aromatization problem I'm having. Strength up, weight up about 8 lbs, really aggro in the gym, sick pumps. Other than the mast everything is human grade w a script so I know it's dosed properly. Now I wish i could say that about the aromasin, caber etc...