Was left stranded in Berlin last night trying to get home to a neighboring city, which should have taken 45 minutes (more like 1h20 nowadays due to time tables and whole regional train lines being down for maintenance til EOY).
The lack of communication was probably the worst of all. Announcements saying to take alternative means of transport. The DB Navigator app insists that everything is still running and it was impossible to get clear info as to whether RE trains were also affected.
Eventually we took a Miles car home and because of this and past unreliability I'm, sadly, thinking about getting a car instead.