Product review (5 stars): So far so good ...
I replaced the original GE filter in my "GE Smart Water" fridge filter system with this replacement filter by Water Sentinel. Switching the filters was simple. I allowed the water to run 5 minutes (as instructed) and so far so good. I was also happy to see on the box that it was made in the USA and also tested against ANSI/NSF standards for chlorine reduction.

Another reviewer mentioned problems with leaking.  We've gone through many gallons of water with no drips. But be sure to check that it will fit your particular fridge model. I didn't see this information on the Amazon.com listing page so I'm including it here - from the compatible models listed on the box:

GE Filters: MWF (that's what we have), GWF, MWFA, GWFA, GWF06
Kenmore Filtes: 46-9991
Hotpoint Filters: HWF, HWFA