Product review (5 stars): Great substitute for brand name. Great buy. Updated June 2018
I am on my third filter from this brand. These filters fit my fridge perfectly and I've never had a leak from one of the filters  Far more cost effective than the Samsung brand which sell locally at $38 each.  The water tastes great, too.  After initial installation there is the expected charcoal residue coming out for the first two or 3 quarts at which point the filter is fully saturated and no longer sheds particulate into the water. I highly recommend these as a) working as promised b) having a great price point and c) meeting my standards. I'll continue to purchase these filters.

June 17, 2018 - UPDATE - I'm STILL using this brand of filter. I've not had a failure yet and the product performs great.  The water tastes fine and lasts the whole three months. The ONLY update I can give is that the connection point has been changed a bit - probably due to other reviews indicating leaks. For me this translated into a very snug connection which is a bit harder to turn.  As I only need to turn each one 2 times total (install and removal) it is not a hardship at all - but I wanted to have you be aware of it.