Product review (5 stars): Questions Got Answered
I just received this and put it on my sink.  I got out my TDS meter and it actually went up after I installed this.  What is it filtering exactly?  The water tastes fresher but with 13 filters, it should be next to zero I'd think!  I'll update more later after a bit of usage.

Update... after about a week of usage, I LOVE this thing!  I think what happened is that since I had so much crap in my pipes and stuff it took a while to clean everything out.  Now my water is crystal clear and tastes great.  I used to be a ZeroWater girl but I am now a convert.  I love this little machine.  Also, it makes clear ice cubes instead of cloudy, which is what I used to have.  Also, I switched my dog to using this water and instead of avoiding his water bowl and only demanding ice, he drinks 2 bowls now! (a lot for a little 2 pound boy!)  So it went from 3 stars to 5 stars!