Anyone with a Keurig machine should be using these filters. Our tap water from the kitchen is murky and has a funny taste straight out of the faucet (our bathroom water is really good - go figure) but with the use of the filters, we get great tasting cups of coffee every time and I don't worry about the machine getting clogged up with whatever causes the water to be murky.
The price is fair. It makes a big difference in the taste of the coffees. I live in Fl and the water needs to be filtered which I have.by using these as second filters it really makes the coffee tea ect.taste the way it should. I recommend changing the filter as soon as the last cup was not as good, all depending on your tap water.