Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Impressive! My water tastes... clean.

We have some pretty nasty water from the tap, but this PUR filter system makes it taste so good. I like that it fits in the fridge and actually holds about 10 large glasses of water at once. The hand held ones I've used hold about 3. I don't know how pure the water is, but it sure tastes great.