SP4 and Docking Station

I was a bit worried reading the bad experiences that many people had with the docking station.

Anyway I just bought a docking station for my SP4. I connected it to my SP4 and to several devices: an UHD 4K Samsung monitor (UE590 series) via a mDP-DP cable, an USB3 external disk, a very old HP scanner, a Microsoft HD webcam, a Logitech wireless keyboard and a wireless mouse via Unifyng dongle, and the local LAN. I don't have any problem.