Hi, I booked a London Spezial ticket to Hamburg for 27/6. It was fairly cheap but the route was a bit "round the houses" through Aachen, Duisburg and Dortmund. Having just searched for the exact same journey, it appears that there is now a replacement bus from Aachen to Duren and the route has now changed to via Cologne. Has anybody got any experience of using German replacement buses? It doesn't fill me with confidence on a 10 hour journey.