Product review (5 stars): Great replacement at a fraction of the cost
I was a bit concerned at first, considering people's comments about leakage and non-fitting.  However, I haven't encountered any of that.  At first the tabs didn't look proper, until I figured out I had the thing upside down.  Flipped it over, and everything looked right.  Snapped in the face place, pushed it into the slot, and it works.  Yes, the fit isn't "like a glove", but to be honest I encountered the same level of gaps with Frigidaire filters.  As someone mentioned, you will need to run water through it to clear out the filter sediments (same as with any filter), so no big there.

So for anyone considering this product, a few tips;
  Save the original to compare with this so you can verify the tabs are lined up properly
  Flush water through the unit before drinking.  You'll get a lot of black sediment and "filter farts"

After all that, for a product at roughly half the cost, I'm very happy about it.