It looks scary from the road, but never extends very far, as it requires a lot of direct sunlight. Forrests proper certainly aren't overrun in the Carolinas by kudzu. That said it is invasive and a bit of a menace.
A high school classmate tried to ferment it as a science-fair project. The idea was to have a cheap source of alcohol for fuel (this was before ethanol production from corn became common). Nope. Didn't ferment for squat. He should have asked the local moonshiners before starting on the project - they would likely have already tried.
The only thing Kudzu is good for is feeding goats.