Product review (5 stars): so this is mainly to get the annoying light off the front of my fridge and clean ...
I followed the instructions and it fit right in to the slot where my old GE MWF went.  Refresh was slightly lighter, and it installed and ran flawlessly after flushing with about 2 gallons of water.  I'm not worried about my water quality in my locale, so this is mainly to get the annoying light off the front of my fridge and clean up any taste issues.  For 1/2 the price of the GE OEM product I am very pleased