I used it in my cycle, last summer, i used mast prop at 100mg eod, and yes it was amazing how hard I was...I was ripped, well still am, and felt like I was made of steel wool, it was insane, but I was also on winny eq and test e and tbol at the time soooooo I hope this helps.
By the way, my cycle was
test e 250mg wk 1-13
eq 600mg wk 1-13
tbol 40mg ED wk 1-5
mast prop 100mg EOD wk 1-15
winny 50mg ED wk 10-15
best cycle I ever ran so far. felt awesome all summer long, like a freaking brick wall.