I bought the profoto kit, the whole kit had a nice build quality. The Reflex S has a superb build quality, I initially had some issues getting it to update the firmware but the support from Stellapro got me through the issue. I am using the Raven trigger, it all works as advertised with the light. Just a quick mention of the mounting accessories, the kit accessories that allow me to mount the light and adjust the angle, that handle is spring loaded so after tightening if you need to move the handle out of the way, just pull it and turn it out of the way (it is spring loaded), NICE ATTENTION TO DETAIL, well done STELLAPRO!.