We stayed there for 3 nights. Unfortunately there ...

We stayed there for 3 nights. Unfortunately there was no window in the room that you could open.
WLAN didn't work either and there was no German television except ARD and ZDF
I also found it very uncomfortable that the toilet was behind a swinging door and there was hardly any privacy.
The location was very good. It was quick to get to the center by train.
It is perfectly sufficient for one night, but 3 nights was definitely too long