Product review (4 stars): Better than the original, works as expected
So I just received this and installed it.  Note pictures for differences between original filter that came with my appliance in May 2015 and this first replacement filter. So far differences seem okay. Installation went fine, no leaks or other issues that I can tell. I ran about 3 gallons through as directed. Tastes great.

Let's assume everything goes well here (mainly, no leaks).  Big pro: this one filters out more stuff!

Pictures: Old filter has sharper edge toward top, new filter is rounded edge.  New filter filters out more chemicals and biological agents.  The top hole seems to be really close in size (some reviewers with older refredgerators, I believe, noted a difference in size). Old filter on left, new in right.

Did not give 5 stars only because I installed new filter today, and would be nice if price came down a bit.