I am very convinced by these flash units. Despite this still quite low price, they make a very good job and are well crafted. The built-in radio trigger works very well and error free and of course improves the usability. The only complaint here would be the zoom function now has only one button and you have to press through all the settings, instead of the Mark II version, which had 2 keys. Otherwise, the operation is very good and also offers the usual settings you'd expect, and about a few more, such as to reduce addition to the switch-on in a flash, etc.
