Product review (3 stars): I AM NOT HAPPY, See Why...
I've ordered and reordered this product many times from Amazon and the price is great online and the product is fully sealed and shipping has been great, etc.

Both the GE brand and other brands fail to work more than a few weeks before they clog and water starts coming out very slowly.  But I keep buying them because I want clean and safe water.

Well, today I just got a TDS-3 Water Quality Meter (from Amazon) to test the quality of my water.  It turns out that these GE filters are barely removing any particles from the tap water!  Here are my results:

Here are my results:
Tap Water: 86
GE Smartwater filter on my refrigerator: 75
Instant hot water, being filtered first using a hot water filter: 85
Poland Springs bottled water: 25
Distilled water: 0 (ZERO!)

The only question is: WHAT DO I DO NOW THAT I KNOW THIS?
- Stop filtering my water?
- Only drink Poland Springs?

I plan on retesting many times, with a new filter on, under different various conditions, etc. But the preliminary news is that this GE filter barely does anything.

The testing does not tell you what the contaminants are... it could be that the filter is removing harmful ones, yet returning charcoal from the filtering process?  Or it could be the refrigerator is channeling the water around the filter instead of through it?  A lot of thing could be going on... but one thing that won't be going on is me drinking much of the water coming out of the GE filter anymore!  Time to find a MUCH better solution to the dirty water problem.

Buyer beware.  Get your own TDS tester to find out how things are working at your house.

UPDATE: I've updated to three stars out of respect for a poster that explained that the filter is actually doing its job. I'm certainly no expert on this topic, but have respect for people that are.  I'd still wish to have a device that filtered water at the same level one finds it in "bottled water" such as Poland Springs.  How would I achieve that level of quality?