Ansich the unit has proved its worth in 2jahres continuous use. However, the menu navigation is a weakness of the device, the volume can only be reached on the second level in the menu, unless you afford as an accessory remote control which, however, has given up the ghost with me after half a year. With good batteries, the Jukebox about 15 hours running from the power grid, even if it indicates an empty battery after 3 hours. Sometimes my device has problem with some MP3 files and then racing through the music, or simply turns off. To date I have not found out whether you can build playlists without a computer, but I guess not. Something bitchy, the device is also when connected to the USB port, turn on, for example, from directly, once the batteries are not fully charged. The display you wish for a bit more, especially if the song titles begin with the artist and the title durchscrollt that keeps on finding. All together, she has never let me down and is a constant companion on all my ways been. Thanks to the robust housing, especially for people who do not tackle their devices with kid gloves the right.