Product review (4 stars): Good product
We have used these before and have had no problems - good instructions, good performance.  Since our water is quite good even without a filter I only wish there was a way to know if the filter is still good even when its 6 months is up!  Six months is OK and better than some, but It would be nice to know the actual filter condition, not just that its time is up.  But this is not a criticism of the filter, just the way the refrigerator system is designed to work with it.