I bought this 12x8 softbox for a wedding photo shoot where I have limited lighting setup. I've tested it extensively and encountered the same problem that another user mentioned: the softbox has an extreme tendency to slam and sink without much movement. It attaches to the flash very quickly and easily, but if anything it's a bit too snug. Also, at first I wanted it to have an internal diffuser like other flashboxes, but it is. It's easy to miss as it's attached with Velcro on the front, sideโฆ