In Sync with the PC I noticed that the docking station does not work on my USB hub. The iPhone can then not be detected correctly and Windows can not install the drivers. However, is also in the instructions that the dock should not be used on a USB hub.
About USB Verlängerungskaben connected directly to the PC you funktiniert einsandfrei.
On the bedside table, I use it only for charging with the included charger. So far I had so no problems.
The only shortcoming is the rather gaudy blue LED, from which one can often read here. However, can fix this little problem also visually quite inconspicuous 2 very small superimposed glued patch fabric tape (diameter about 3-4mm).
All in all, I am using this article definitely very satisfied!