I bought this about 2 weeks ago and so far so good the water tasted different at first because of a different kind of filtration system.  I put the product to the test and test my water straight out of the tap if read over 700ppm.  Needless to say that is why the water tasted different, it was actually pure.  I gave it 4 out of 5 because the pitcher doesn't fill up all the way.  It only fills half of the way so we have to fill it more often.  But is the only issue, I have recommended it to just about everyone I know.