Not recommended for ambitious photographers

I have to handle now since more than half a year has passed and I am not satisfied.
Basically, he does exactly what he should, but always it comes completely unexpectedly cause the handle - one even touched without him - in continuous fire triggers. That's just to stop in the turning off him. After erneueten enable you have a 50% chance that it will work normally again.
Another problem that occurs is also out of the blue that you can not operate the menus. you just get a black screen. Again, you have to turn the handle only to keep it running again.

Now for the positive side of the battery grip.
The optics, Habtik and usability are perfectly fine. For the money I did not expect in any case. Here and there one could make the form more ergonomic.
Even the often-described unpleasant odor is not noticed much from the beginning, and after half a year the part smells normal.

All in all one can say that the handle for photographers who often find yourself in situations where they can miss important situations (weddings, sports, etc.) is completely unsuitable. The risk of "spontaneous Ausrasters" the handle is too high. And Zack, you have missed the kiss after the ceremony.
Photographers who are targeting more to double the battery power and the extra weight and maybe make more stills are served here well. The occasional defects are indeed annoying but bearable, if you want "just" photograph a landscape.

Perhaps the enormous price of Canon's but justified ...