Small compact device with many features. Use it. With iOS devices and Readdle Documents Works flawlessly on the undocumented WebDAV access (10.10.10.254/data). So I have all the documents in one place and does not need the original app to use because the user interface causes eye cancer) and also not really intuitive. Power but what they should and is stable. However, a star deduction because the device with hidden WLAN's can not handle. It is not possible to enter the SSID and the password. Even after the WLAN has been connected once in visible mode, the device takes the WLAN in hidden mode after not again. The data is not stored. For those who use such a function is very poor. I hope that it will be submitted with a firmware update.