Product review (3 stars): Better than tap water
I purchased this LG brand new filter from another vendor and installed it in my LG refrigerator a couple of weeks ago.  In order to remove the old filter, I had to allow the filter housing cover to drop all the way down or the old filter wouldn't come out.  In my case, I had to remove the shelf that was directly under the filter.  Installation is fairly easy.
I checked the filtration of both my tap water and filtered refrigerator water with my TDS Tester that I purchased from Amazon.  The digital readout for the filtered water was .189 and the readout for my tap water was .228.  The taste of the filtered water is better than the tap water; however, I prefer to drink reverse osmosis water with a readout of near 0.000.  Some filtration is better than no filtration and that's what I get from this filter.