Product review (4 stars): in the past I've been satisfied with this filter although initially it is hard to ...
I haven't actually used the new ones I purchased yet since I was stocking up for my future needs.  However, in the past I've been satisfied with this filter although initially it is hard to install.  It's difficult to turn it so that it locks in place but  after a few minutes of hard turning, it suddenly turns.  It lasts six months which makes it a bit of an expense to use but is worth it to have filtered water.  It is cheaper to purchase them through Amazon than buying them at the home improvement stores.