Hello There, ordered the water filter, because we in our very high water hardness (14.8 dH) and have wanted to change this. Need also soft water for our coffee machines and I even drink very much tea, so our kettle had to be at least 1 time a month decalcified. Now we have the water filter bereitsseit about 3 months and are very happy - have the kettle is not descaled again, since he himself after 3 months is still free of lime - we have never before considered - now have water hardness The processing and the quality of the water filter are great - the look is also very modern. Now we can drink tap water finally back - even the tea tastes much more intensively. We are very satisfied with the purchase and can only recommend this.