My wife and I saved and planned for a couple of years to take a 14 day romantic river cruise through Europe, our dream vacation. It turned out to be the worst trip we have ever taken.
To summarize; 36.45 hours on a bus, 14.25 hours of free time to explore the towns visited, 10 hours of daylight cruise, includes 3 hours of Rhine valley cruise during 2 hr lunch on lower level of rented tourist day boat, changed boats after bus transfer, upper deck closed most of trip, unpack/pack 3 times, optional tours a great disappointment.
Viking knew about river issues for weeks, yet no communication, rescheduling or cancelation allowed
Cabins were great, service people excellent.
Did not want 2 days in Amsterdam, but forced to stay at hotel