We were so disappointed in the response from Viking to the problems of the low water levels on the Danube. As others have said we had to change ships twice and spent two 1/2 days on buses, excursions were cancelled, we lived out of our suitcase due to changing ships so much. Our balcony was unusable several days due to being parked next to other stranded ships or being parked near a swamp area. We understand that the water levels were out of Vikings control but notifying us two days before departure when they knew for over a month and then offerering no actual financial compensation (25% off your next cruise!) was unexceptable. Then three calls to customer service with no one with authority responding . We may have tried Viking again but the poor customer service has definitely been a deal breaker! I would pick a different cruise line!