Well i'd say from 25-50mg, and i'd check the bottle to let you know how much you're taking. I wouldn't expect too much progress from it, some hardening/fat loss at most. You shouldn't lose what you gained as long as your diet stays on point.
Pros: reduced estrogen- more test. Theoretically, more LBM growth, fat loss, increased sex drive, alpha male mentality
Cons: loss in libido, joint pain, depression, lipid levels messed up

well whenever you play with your hormones theres always a chance of gyno, and messin up your levels. But if you stay within a safe range for a safe amount of time and taper down the dosage you should be fine.