I heard about Alex and Dive4Photos several times during my Divemeaster internship and IDC course on Koh Tao.
Alex was a great teacher he has the passion for photography and his years of experience are were noticeable in every subject we touched above and under the water.

Personally I enjoyed the macro week most out of the entire workshop I would not skip out on the other 2 but I would definitely do some extra macro shoots in the future with Alex next time I am on Koh Tao.