Product review (3 stars): Does not last long.
This filter is certainly a good bang for the buck, but don't expect it to last more then a month.  I'm on my second set right now, and what I noticed is that after 2 weeks the filter needs to be cleaned and flipped over.  Then it's good for another 2 weeks and that's about it.  Now, I do have hard water, so don't know how much better it will work for those who don't have the same issue.  With that said, I just ordered 2 more, only because this is still a better deal then Holmes.