After 600 shots made with this flash I give full marks. The TTL is ideal, following me to the use of YN-560 that I keep preciously in fill flash triggered remotely. This is a gem for connoisseur, very affordable compared to brand flashes. When the quality of the photos obtained is simply the best, no cheese because the colors of faces are natural and perfect exposure, you just treat the area sometimes a little oily skin faces that shine too. Only downside, no instructions in French, but looking good on the net, we find that of the YN-568 EX II, whose little inspiration.