River cruises are itinerary-heavy and often include guided touring, but route, waterway, cabin category and pace still vary significantly.
Danube, Rhine and other rivers have different city mixes and trip rhythms.
Window, French balcony and true balcony categories can feel very different.
Extra nights can make a river cruise feel much less rushed at the beginning or end.
I can check fares, group space, cabin choices and package value for the cruise you are considering.