Product review (4 stars): Good Filter/Poor Packing In Shipping
This filter seems to work well & has improved the water quality of some very iron tasting water. We have it installed on the water line that supplies the drinking water faucet & refrigerator ice maker.  We put it in the basement so it's easy to access/change the filter.

Update 12/09:  We also use this filter in our primary home for the water line supplying the refrigerator.  This house has a very different water issue: hard water.  We previously used a Brita filter/pitcher for making coffee/tea because it stopped hard water deposits from forming in our pot.  But that system was so slow & took space in the refrigerator so we switched to this filter.  Unfortunately, it does not remove the hard water/lime.  So the pot has to be "delimed" regularly.  Also doesn't stop the buildup of lime in the refrigerator ice maker/water dispenser.

Was not happy w/the way this was packaged for shipping.  There was no filler around the filter boxes (c'mon, who doesn't have a little newspaper or something around to use in packing???). So the filters rattled around the box & 2 (of 3) were out of the product packaging.  Luckily, it doesn't appear that they were damaged but will consider another company to order these from next time.