When I was researching buying a water energizer, I came across a lot of issues with the Ellis machine. There are HUGE customer service issues, quality control issues, etc...
I ended up buying a Jupiter Melody. I think that the Ellis machine does something special, IF you can get it to work, and IF you can keep it working.
Anyone considering buying one should totally google it, and read all of the review and comments they can find, before they do so. Then, make an informed decision.