The installation of hard drives is hassle free without tools. The operating system installation, configuration and loading the add-on packages - everything simply and in German through the user interface very intuitive. Copying the library with several TB on the system then takes good 2 days and again a day to the media server, all media has indexed. Somewhat more difficult was the configuration of the external access - ie from the Internet home to the DS415. The DS415 could not automatically configure my Internet modem, so I had to port forwarding and DDNS set up manually. But works also with Google.
In operation, the part is now the hammer. Top speed for streaming movies and access from anywhere with any device.
