12.5mg a day is enough imo
first week or 2 your sleep will be fucked, after that youll sleep deeper and dream more vivid...
youll also be hungry as hell for the first 2-3 weeks, after thats its a subtle feeling that you could always eat
instant fullness within the first few days, increased water retention (but the good kind)
bloat if your diet is shit
youll be covered in water but as with GH youll be able to eat more without putting on fat (especially combined with tren)
better skin, nails, hair
very good drug overall imo, imo the main benefits are cosmetic (fullness), anabolic effects are rather minor (around 50-70% increase in GH/IGF with 25mg a day)