I love the taste of this water and knowing how much cleaner my water is,  We originally purchased this for my daughter to take to college, but her roommate already had one.  Then we got to try it,  so glad we did.  We had been using a filter for our refrigerator for all our water. Although I didn't notice at the time I now taste chlorine when I go to drink it.  The only reason I did not give it 5 stars is because of putting the lid back on after filling.  It just never feels like it's on correct.  I have not had it long enough to replace my filter yet.