I have the Rogue Flashbender. I use it from time to time only because it's so big. It's definitely great to use when there's no surfaces for your Speedlite to bounce off of.
I curve the Flashbender in such a way that the light shoots forward with a slight falloff to the sides.
Also works great if you're standing next to a white wall. You can point your Speedlite sideways and back (to "flag" the Speedlite) so the wall is one big light source.
Just one gripe is the size.