Product review (4 stars): Great cheaper alternative to the name brand filter
I purchased this because the cost of the name brand filter recommended for our GE side by side refrigerator was exorbitant in my opinion.  Installation was straightforward - as others have noted, you must use the correct rubber o-ring gasket or you will have substantial leakage.  I didn't understand the directions and used the wrong gasket initially - you will know immediately if you make this mistake - in my case the water was spraying inside the refrigerator.

I have had this installed for about a year now and it is still performing well.  Water pressure from the water dispenser is still strong and the flavor of the water tastes like the filter is working well.  Still no leaks after a year.