Product review (5 stars): Easy to Install, Better Ice & Water
The twist on/off installation is a snap, and the filter seems to last me longer than the 6 months projected.  We have very hard water in Southern California, and these filter provides cleaner tasting water and less mineral deposits in my ice cubes.  There may be better filters out there, but this unit does just what I ask of it at a relatively reasonable price.  Since I was too cheap to install a whole-house filtration unit, this is the option I've chosen to feed the water line in a 42" Kitchenaid Superba built-in, and I'm pretty content with the choice.