Product review (5 stars): It's a filter.  It filters!
We bought our new fridge about a year and a half ago and have replaced the filters a few times.  There's really nothing to it.  You get clear water which tastes great.  There's not much more that can be said about this thing, but I'll try:

Its cylindrical shape is the first thing that catches your eye as you unwrap this beauty.  Its sleek, round edges catch the light just right and can take your breath away if you're not careful.  As you hold it in your hands, you can feel the master craftsmanship from top to bottom.  Nothing was held back in the manufacturing of this masterpiece.

Installation is magical.  You simply think about the process and the filter ... nay, the Filter of the Gods, installs itself for you.  You hardly need to lift a finger.  Harry Potter has nothing on this.

One thing I should mention, however, is that we don't get a full six months out of these.  We fall short by about a month because we use a LOT of water from the fridge; our tap water is pretty nasty.  We fill our coffeepot from it each morning, we fill two thermoses for work each day, we use it to cook with, plus drinking water.

Because of this, I wish GE would rate the life of these by average gallons and not a time frame.