Product review (5 stars): Works perfect
I'm using this in a GE-SmartWater plumbed fridge.  It expects a GE MWF filter, which I've dutibly purchased, 2/yr for many years.  Well, the list price of those filters recently has been rising lately, and this filter is an incredible value. As far as I can tell from the various other reviews, it's filter-ratings/guarantees are fine for me (I'm on a relatively new branch of a good/safe city water supply). There's a definite taste improvement, similar to the MWF filters. I didn't have to fiddle with anything to plug it in.  It comes with a cute little sticker-set that makes it easy to mark the install/replace dates (I've always used a sharpie to mark the MWF filters).  Water taste is definitely improved over straight tap water. The only bummer is amazon won't let you order these on a subscription basis yet! (every 6 mos, come-on, do it!).