Product review (4 stars): Non-OEM = No Worries
Unlike some of the other reviews, I have not experienced any issues so far with leaks (although I kept my old cartridge for the seal just in case.)  It fit just like the OEM product and cost far less.  I can't say theres a difference in the taste of the water vs. the months out of date old filter, however.  But, it works as advertised for a much more palatable price.