Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't Buy This One!

This does make the tap water taste much better. However the switch is so hard to turn I've been using a wrench to turn it. That's a little ridiculous in my book. I wonder if it's a ploy by Brita to make you go through your filters faster, after all it's easier just to leave the filter on. Do yourself a favor and buy another product.