The battery life is very high (several hundred pictures are possible) and readily available. The processing is as already mentioned very good, which also justifies the rather expensive price.
I can not recommend a diffuser for the flash to be used and which allows the images considerably better (the guide number of the flash is sufficient for this).
Anyone who wants to make beautiful and sophisticated images, comes to this flash unit from (the internal flash can forget dagegegen), it is highly recommended by me!