Product review (3 stars): Good Price. But 30% failure rate.
These are much more cost effective than the manufacturer replacements from Samsung.  From what I can tell (not an expert) the quality of filtering seems to be the same.

However, when we tried to install the first one of this set, it didn't seem to go in well.  There was a hissing sound and we noticed water leaking.  I removed/reinstalled it and that seemed to resolve both problems.  But then there was no pressure behind the water at all - it was coming out very slowly.  So we removed the first one, tossed it, and put in a second one - which worked fine.  Maybe it was "user error" - but it shouldn't be so easy to ruin such expensive replacements.  If 1 out of every set of 3 is bad, then these may not actually be worth the price.

Giving this 3 stars for now.  If we see improvement over time as we continue to use these, or if the manufacturer sends us a replacement, I may upgrade it.  Feel free to post a comment if you'd like an update.