In my Canon life I was using flash on camera quite often so when I started evaluating Olympus OM-D E-M1 not everything could be tested. Eventually I decided to get FL-600R flash to make sure I can do similar things with new camera. Of course I do not have same range of lens for new system so making switch decision will be based on partial data.
LumiQuest ProMax system with it. It has a holder for multiple reflector and frankly it was to complicated so I was using it infrequently. Especially since I got off camera flash bracket which seems to work better. Anyway I wanted something that can be easier attached to flash. I looked at flash soft boxes and and accidentally I found something looking pretty interesting: Rogue FlashBender. It can be quickly attached without any velcros. Also you can bend it anyway you want, sometime it could be faster than tilting whole flash head.
Great little bonus, you can wrap it and make quick snoot :-)