We were originally scheduled to be on the Crystal Bach for a Rhine excursion from Frankfurt to Amsterdam. However, we were alerted a week beforehand that the cruise was being switched to another ship. We discovered a bit later in the cruise that the Bach had been hit by a barge and needed to be repaired.
We were offered to switch to the Bach's sister ship, the Mahler. Also, the itinerary was drastically changed due to low water levels in the Rhine. Our point of embarkation was also changed from Frankfurt to Cologne. Crystal took care of transfer from Frankfurt Airport to Cologne.
Although it wasn't the ship, nor the cruise for which we'd signed up, we had a wonderful time. The food was wonderful both in the Bistro and in the Waterside. The staff and crew were incredibly cordial and helpful. The excursions were great, especially considering that Crystal had to do some fast thinking to schedule them. Entertainer Neal Fullerton was a treat. He's incredibly talented and also knows how to get the passengers involved.