Ok, so i tried it today.
Very light weight less than 10gr, clear video and very resistant to rf noise from my esc.
But, the biggest problem is : the range. With stable 10volts (output power should be 800mw) i've got only 400 meters
I'll check all my settings to be sure there is nothing wrong.
If i can't get a good range i won't use it with my regular plane, but that's still a good deal for a small plane, little parkflyer, maybe indoor, etc...