The recommended amount is said to be 4 scoops for a shaker cup but 1 more than enough. The flavour is good just not as sour as expected and a little too sweet. Flavour is the best from what I have had(4 sample packs + one from my friend).
It is free can't complain
but I don't like anime girls on the product
wish vtuber thighs were in stock, this one is also good tho