I've been thinking a long time whether I really should buy a remote trigger for 300 euros, which I can use with my Canon Speedlites, since there are also similar deals in the market which are much cheaper (keyword "Yongnuo"). And actually I'd probably decide afterwards for a cheaper deal. Indeed, there are a few minor problems that bother me particularly. On the one hand, unfortunately, let the functions of the transmitter to any wireless high-speed synchronization. One must therefore resort to be on a cable. Very disappointing as other manufacturers offer this wirelessly. On the other hand would have also required that the control of the flash output can be adjusted with a simple push of a button. Unfortunately, one must always take a detour via the Menu, and then again to make the setting, which means that you must press the button at least 2x. Thus, the menu control is sometimes a bit slow and cumbersome, since you just have to frequently confirm the selection. Also, it comes partly to problems in signal transmission, so that a flash does not fire. This is also with other devices so, but it happens, unfortunately, at a short distance, I have not expected at this unit. The build quality is otherwise good and the display shows all the settings to clear. Overall, I would rate the value for money just as satisfactory, since the transmitter's function was mostly well met, this does not justify the high price.