I've owned a Vitalizer Plus since last May. I love it. I suffered from a bit of autotoxemea as a result of taking too aggressive of an approach on the Master Cleanse. The hex water really helped.
I got it from these guys because they offered an unconditional money back guarantee for 90 days, so there was no risk for me. If for ANY reason, you don't like the product or what it does for your water, just return it for a full refund.