We are looking at Dec. 2023. We have been to most/all the cities on the Rhine itinerary just this month on the Tauck Rhine cruise. We have been to several cities on the Danube itinerary (on our own) and loved them as well. However we have never been to Europe during December so even familiar cities will be different and of course - the markets. For those who have been, how did you make your decision as to which river cruise? And as a side note...is the ship decorated for Christmas?