We have extremely hard water that left difficult white spots on our shower and was very hard on our skin and hair. I can see a huge difference in the fact that the water spots do not form so quickly on the shower wall and my hair has more body. We always wipe the shower dry with a squeegee and a towel but now if we don't get to it immediately it does not cause a permanent water spot. Attractive and nice size-----previous filter that we tried was bulky and unsightly. I think it makes a huge difference in our water quality. I want one for the other bathroom.