Oh that's good to hear that you loved it!
The Dawn itinerary we're looking at for Sept 2025 begins in Oslo and ends in Stockholm. We would definitely be trying to add on at least a day or two in both of those cities.
By doing the Dawn itinerary, we give up London, Brussels, and Amsterdam. (I'm not worried about London, because I would rather include that in a UK land tour later)
The ports we gain on the Dawn itinerary that are not included on the Prima are Oslo & Kristiansand in Norway, Aarhus in Denmark, Hamburg in Germany, and Riga in Latvia. The Prima itinerary does not go to Norway or Latvia at all and only has Berlin in Germany.
Did you go to some of those ports and really recommend them?
I'm leaning toward the Dawn because the itinerary is so good.