Gains are fucking awesome, but the side effects fucking suck.. it's pretty much that simple. I've ran 1500mg of Test with it, and still had a hard time getting out of bed sometimes.. the lethargy is REAL. It's very toxic to the liver, hdl, and lipids as well.. so make sure to just keep it to 3-4 weeks. I typically think that the level of toxicity with steroids is blown out of proportion, but not with this. Also, because it is so anabolic and puts some much size on you in a short time.. gains start to stall after only a few weeks, so running it for a long time is pointless.
I did found that the lethargy went away the more carbs I ate. Basically just try to force simple carbs down your throat all day every day. SD can kill your appetite though which makes doing that hard. Such a cruel world.