Product review (4 stars): Great Replacement Water Filter
The first time I ordered these filters, I only ordered one because I wanted to make sure they worked well in the Samsung refrigerator that we have.  The filter I bought lasted for 6 months, and that was with fairly heavy use.  I start each day by filling a liter bottle of water and that doesn't take me through the day.  There are three people in our household that almost always drink nothing but water, so I was happy with the 6 months life span on this.  I'll definitely continue to buy these filters rather than the name brand.
Also, we've had no issues with leaking or with installing them.