Product review (3 stars): Overpriced - Mildly effective but still tastes like tap water.
Filtered down my TDS (total dissolved solids) in the tap water from 430ppm to 380ppm.
Not nearly as effective as my reverse osmosis filter which takes it down from 430ppm to about 30ppm.

Better than nothing, but for under $200 you can buy a RO filter that tastes 100x better than this fridge filter.