Product review (4 stars): No problems!  Worth the savings.
I purchased these filters to replace the GE Model MWF filter which is much more expensive.  Granted that the GE filter is NSF Standards 42 & 53, and these filters are only NSF Standard 42.  Standard 53 is nice to have, but our water supply is safe, and I use the filter for purposes of improving taste.

No problems replacing filter, and NO LEAKS as has been described by some.  You must make sure that the O-ring is in place.  I didn't have to turn off water to refrigerator since it has automatic shut-off when filter is removed.  I think these are worth the $10/filter savings vs. the GE.

I gave it a 4 STAR rating since it does not meet NSF Standard 53.

NSF/ANSI Standard 42: Drinking Water Treatment Units - Aesthetic Effects
Overview: This standard covers point-of-use (POU) and point-of-entry (POE) systems designed to reduce specific aesthetic or non-health-related contaminants (chlorine, taste and odor, and particulates) that may be present in public or private drinking water.

NSF/ANSI Standard 53: Drinking Water Treatment Units - Health Effects
Overview: Standard 53 addresses point-of-use (POU) and point-of-entry (POE) systems designed to reduce specific health-related contaminants, such as Cryptosporidium, Giardia, lead, volatile organic chemicals (VOCs), MTBE (methyl tertiary-butyl ether), that may be present in public or private drinking water.