What do you get for $200? Well, it works, it generates power, but it's also quite noisy and falls well short of the claimed output power. But .. it works!

The highest current I have seen (12V model) is around 12A, I'm sure it'll do quite a bit more if you hit it with a cyclone or tornado.

In this video, I took the brake off and started filming. It takes a while to get up to speed, but it accelerates very quickly after that.