Product review (5 stars): Product worked as advertised.
We ordered the Supco water filter replacement cartridges for our new Samsung refrigerator because the OEM by Samsung was too expensive.  After reading many, many reviews of the different replacement options available to us, we opted for the Supco.  The product was packed well and arrived promptly, but the real question is "How does it work?"  We think it works very well.  It was easy to install (we saw a Samsung video and read the package directions first) and is doing the job.  To install, we followed the directions and put a paper towel just under where the exchange was taking place.  There were only a few drops of water to deal with and there has been NO additional leaking of any kind at all!  Before drinking, we ran about five big glasses of water.  My family has noticed no difference between water from the OEM filter and water from the Supco replacement filter.  They say the water is fine!
I give it 5 stars because the 3-pack is a really good value and it is doing the job.