I used 3/day when it first came out, with my 3 largest meals and just one bottle, not two as many are doing. I got amazing hypertrophy and muscle hardness, even my first stretch marks. Recently there has been controversy surrounding the product so I'm still undecided if I will try another bottle in the near future.
I got mild lethargy, and if I didnt eat enough with it I got a massive headache, so make sure to get a lot of carbs in. For me I had to take 80 to 100g CHO with each cap, but keep in mind I eat 500-550g carbs daily.
My first dose I took with roughly 50g carbs and I will never forget the migraine headache.