Product review (2 stars): Cheaper and don't last as long mean that they aren't a good value.
The bottom line is that they are cheaper that OEM, but they doesn't last as long.

With the OEM (e.g. GE) water filters, I would change them every 6 months because I was "supposed to". At that period, I still hadn't noticed a change in the taste of the water. With these filters, I have started noticing that my water has a "taste" after about 2 months.  That is a big difference.