From the first use I lost this after 50 trippings and therefore the beginning of the shoot. The diffuser does not stop on the flash unit and is much too loose. He is me unnoticed slipped at the first location change by lightning and untraceable gone. That's bad luck or stupid of me. Many other reviews bemägelten yes exactly this problem and recommend to fix the diffuser with tape. I probably would have done better times. The fit, however, is / was really good but the material is definitely too smooth and holds the diffuser is not "independent" proof - what it was supposed to.
Besides being noted is that the diffuser makes the light only slightly softer. I could at least see the handful of test images I had made previously. All in all though quite cheap but still not worth the money, as 1 and 2 hardly function simply impractical unless he "firmly" holds.
I can not recommend the diffuser therefore.