Product review (5 stars): Working well
I received and installed this filter three days ago.  The threading looks a little different than the threading on the OEM filter I was replacing but it installed easily and has not leaked a drop.  My refrigerator model is GE PCF23MGWA (or PCF23MGWABB).

I've probably used eight to ten gallons of water since installation.  The water looks and tastes fine, but to be honest I have no complaints about my tap water in the first place.

Overall I'm pleased with this filter and will be ordering one or two more to have on hand.

I did _not_ receive this product free or at a discount, like the other reviewers have.  I just wanted a good and inexpensive filter.

Update (7/14/2016):  Still working well; no problems!  I have ordered two more for future use.