Product review (1 stars): Great in the beginning, but failed on me!
I ordered this 2 pack based on reading reviews and the price was great.  I installed the filter in late February 2013.  Around the beginning of May 2013, the water started tasting a little funny...a sharp after taste!  I tried to look at other causes, but nothing changed the water taste.  I put in the 2nd filter (did the recommended flushing, etc.) and the water was tasting better again.  It's been about a couple weeks now and the water seems good.  So the first filter lasted a little over 2 months...not what I was expecting.  I will be going back to the PUR filter.