Yep, picked it up a week ago... I am 5 injecs into it and so far I feel great!!! I missed one day and could tell the difference maybe its pshycological, but there was a real difference. The half life I am told is around 30hours so it makes since if you miss a day you will feel the difference. Anyway no pain associated with the shots what so ever. Ill let you know as it goes along but so far I am happy with everything except of course the price which sucks!!!!!!