The only drawback: The quality of the connected monitor is slightly blurred as with direct connection - but still useful if it is used only as a second monitor. I have a monitor via HDMI connected to the laptop (right), a second via the docking station. The notebook monitor itself is hidden in me. The setting works well with the included software, as well as on Windows.
My Ultrabook is thanks to the Dock now a full-fledged working tool - recommendation for anyone who can not hang pro-dock on his laptop or want to use laptops at the dock.