Product review (5 stars): I finally decided that the price differential between this filter and the Samsung filter was so great, that it made it worth try
I always read the reviews before purchasing an item for the first time.  I especially make sure I read enough of the one star reviews to get a general idea of how serious any problems are.  I must admit that after reading the negative reviews in regard to leaks, I almost didn't purchase this filter.  I finally decided that the price differential between this filter and the Samsung filter was so great, that it made it worth trying.

I carefully inspected the new filter for flaws/damage and found none.  Upon removal of the old filter, I compared the old Samsung with the new Waterdrop filter.  The only differences I found were that the Samsung filter had two thin O-rings and a round hole for the water flow.  The Waterdrop filter had one thicker o-ring and a square water hole.  In my opinion, the single thicker o-ring should at least be the equivalant of the two thinner o-rings at the relatively low pressures of household water supplies.  The round verus square water holes should make no difference in water flow as they are of similar size.

In my opinion, the primary causes for leakage would be a damaged or missing o-ring or a filter that was not seated all the way (not twisted far enough).  Careful inspection prior to installation should reveal an o-ring problem.

I have had this filter installed for about two weeks now with no problems detected.  The water tastes great and there are no leaks.  I will be purchasing another Waterdrop filter for my next replacement.  I will post an addendum to this review if a problem should arise with this or future Waterdrop filters.