Product review (4 stars): Pricey, but useful
After our last water filter expired, the ice produced by our ice-maker came out cloudy.  Not a big problem, except that the impurities in our water would sort of freeze into a clump in the middle of the ice cubes.  When the ice melted, it would leave these nasty looking clumps in our drinks.  It's just the minerals associated with hard water (calcium and whatnot) but it's disturbing to look at.  New filter = problem solved.  Still, it would be nice if the price was lower on what's essentially an overgrown Britta filter.