Anyone know about Nikken?

Does anyone know about Nikken water filtration systems?

I'm just starting to think about them, but really am not very knowledgeable yet. Don't know if it's a lot of hype, what the health benefits are supposed to be, what they claim it filters out & adds back in, etc.

I'm on the front end of investigating, and thought maybe some of you could help me along?

Have you used it? Noticed any difference in health? Do you have to do any of the other "Nikken" type things as well -- or is the water enough? ;-)

Or is another type of filter just as good'?

I'd love to hear any of your experiences, if you've heard anything negative, and so on.

Thanks!!!