Product review (4 stars): it still has a large amount of what looks like filter material in the water
After running several gallons of water through the filter, it still has a large amount of what looks like filter material in the water.  Never had this issue with previous filters of this type so it may be an isolated case. I would recommend looking through a clear glass of water after installation and flushing just to be sure you don't have this problem.

Update: After trying another filter, it looks like the is with the refrigerator water system not the filter.