I can't speak to the double-handed Igniter but I have a single-hander 9' #7 weight.
It's described as very fast and it's a pretty specialist tool - used to carry a long line for distance casting. Actually it's a very lightweight rod that by normal standards is underrated - I measured it as a #9 weight and if you put that line on it, it's a very nice and easy rod to use. As a #7 weight it's great with a lot of line out, which is fine if you can handle that but most can't. (I can sometimes, but not often enough to be useful, for me it's a tool I use to humiliate myself).
My guess would be that the Igniter would be a nice double-hander for the average caster if you overline it by at least one weight.