This flash is great. The handling is very simple and intuitive. Except for the advanced menu ...
But you have the instructions in Chinese, English and French translation provided by Zele.
I tested the drive in conditions where the flash is "blind" with respect to the master flash.
And it works very well. You can beep to tell you that the flash is ready again.
Note that with new batteries, flash charging is virtually instantaneous.
What triggered the long distance up to 100 m ... not very helpful with NG 58 (ISO 100 to 58m, zoom to 105mm). But this must work when the field is free. ;-)
Fini transportation of radio trigger flash are next, everything is integrated.
Personally I use YN-560III with a radio trigger RF-603N which I was already very satisfied.
The YN-560 III is the only market at this price to offer:
NG 58
24-105 zoom
Power regulation and a "strobe" mode (breakdown of a movement, ghost effect, etc ...), trigger second curtain if the case supports it.
integrated radio trigger modes in addition to the classic M, S1 and S2
This is the "studio flash" that can virtually put in the pocket. Almost ... because it is always a flash cobra about 20 cm.
I think the YN 560 III is the standard at this price.