As long as the device is working, we were completely satisfied - so for this time eiegntlich 4 stars. However, despite regular cleaning and decalcification also dilute pure citric acid for household appliances as needed, the device went quite exactly 2 years and 3 months kaput. We have used it less for our first child than a half year low and with our second child just 3 months. This is absolutely unacceptable for me. Kindly us customer service Philips has offered a replacement with again full warranty, but ibenahe the usual street price of the device - that's why for this "power" only one point.