I used the Sustanon at .8cc 3 times a week for a total of 720mg a week. I did the 3 times a week pinning schedule to take advantage of the fast acting esters and to try to keep a stable blood hormone level. The fast acting esters, test prop and test pp, did their job by providing me with a boost in mood and libido while the slower esters built up in my system. I felt this Sustanon was very good quality with the traditional Sust blend of 4 different esters. Strength increased and mass was steadily packing on. Overall I was very satisfied with this product.