I am absolutely in love with this unit. I was carrying 3 gallon and 5 gallon water into my house twice a month for years and years from Whole Foods. Once I read about this purifying unit, I did lots of research. And I can tell you verbatim it is fabulous. The water is clean and clear and crisp. And the customer service is absolutely outrageously good. They are so kind and so patient when I have questions. I highly recommend this unit.