I have been using Kölner Verkehrs-Betriebe AG for ...
I have been using Kölner Verkehrs-Betriebe AG for my daily commute for the past year and I am quite satisfied with their services. The buses and trams are always on time and the drivers are friendly and professional. The ticket prices are reasonable and the routes are well-planned. I would highly recommend KVB to anyone in Cologne.