I've seen them, I'm sceptical on the real benefit. As the driver you feel that you've got a better view as it's illuminated a very long way into the sides of the road. It achieves nothing much better for the road however as that's where the other cars are. As I drive on the road I don't see how it's much benefit, gives false confidence. Take this image as an example, the car has simply managed to illuminate more trees unnecessarily.Probably worth watching Bjorn's videos on headlights on YouTube, he has demoed several cars that give a clear indication of just how better these systems are.
What he doesn't show is the experience for other drivers, my experience is that it's often worse, distinctly distracting. I can't really say for sure that's all systems, as if there was one that wasn't distracting I wouldn't notice it, but I do generally notice it's Audi's that seem to be a problem.