Instruct: Classify Amazon reviews into positive or negative sentiment
Query: great design, but does not adequately filter water.

I bought this unit after my third Pur unit started leaking. I love that it can swivel and I love how the pull knob that turns the filter on will pop back in automatically when you shut the water off. However the filter itself is not very effective. My city has pretty strong chlorine flavor in the water. The Pur filters (2 stage and 3 stage) removed this entirely, it was completely imperceptible. This Culligan filter does slightly reduce it (I did a blind taste test to confirm this) but it does not come anywhere close to the Pur. The water still has a strong chlorine flavor, almost as bad as straight tap water. It is not good enough to keep my wife from buying bottled water, so I am returning it.I guess I am going back to the poorly designed Pur simply because it filters better. I may do as another reviewer mentioned and get it at Costco for the returns.