I am ridiculously picky about water. I don't like most tap waters, or bottled water. 
I was VERY skeptical about Zero Water, but interested after watching a TV infomercial. I was incredibly surprised at the delicious "no" taste. What I mean is that I don't taste anything but, WATER. No chemical taste. No after taste. Just perfect water. I drink two pitchers a day myself, and the filter lasts for a really, really long time. Great find!