Works flawlessly! Space-saving packaging and hardly dead weight! A secure grip of the retaining tabs and Velcro for fixing, holding the "box" amazingly safe and very precisely on the flash unit (in my case a Metz MB 44 AF-1). The light is soft and can be controlled very well through the mold.
The mobility of the flash unit are hardly limited by the diffuser.
The processing is, for the price, really good and also the "Box" was delivered very quickly!
On the go and for hobby - photographers a strong buy recommendation!