Personally I use with my 7D Mark II
With Pixel Mago, you can adjust the focal range, put in manual or TTL or multiple ...
Of course you can make sync 1 or 2 curtains or high speed.
He also led lamp :). This is not a detail because in some situations, it may be practical.
It also comes with a mini foot (handy if you want to take photos of the strobist).
For batteries, I use eneloop rechargeable batteries and I have no problems.
The Pixel Mago is also upgradable firmware level via micro USB socket (I did the update without any problem).
I am not disappointed with my purchase.