Product review (2 stars): Funny taste comes and goes, YUCK!
My husband was the first to notice, and after a day or two of it being installed (after which I thoroughly flushed the line) it began to take on a really funny taste, and not a good one.  For a day or so it stayed that way and we didn't even want to drink water from the fridge.  Tap tasted much better.  But then the taste went away.  And came back, and went away.  I don't know what's going on, I made sure I installed it properly...  I am here on amazon again to find a replacement.