Product review (4 stars): Works fine but water definitely tastes different and not as good
It works fine.  Initially it runs black but goes clear after the 2.5 gallon run required per instructions.  I used it to replace my original PUR filter that was installed with my Maytag fridge.  My only complaint is the taste of the water. Initially it had a chalky after taste.  Now after drinking it for a few days the chalkiness is gone but there is still a bitter after taste.  Definitely not as good as the PUR filter.  I will be returning to the PUR filter for my next replacement filter.