We just did a back to back Norway/Baltic on Preziosa out of Kiel. We spent a few days in Hamburg before the cruise. Personally, I would not do a cruise out of Kiel again. The ‘new’ terminal in Kiel is a slipshod modification of a port warehouse at the ferry port some distance out of Kiel. The ‘Journey’ from Hamburg to Kiel was a major pain. We took the train, but the only trains going on Saturday were local commuter runs. And the MSC shuttle from Kiel hauptbahnhof was not convenient. If there is another YC ship out of Hamburg I would recommend that.
All that said we loved the Preziosa YC and the cruises themselves. We have taken 2 back to back itineraries on Preziosa, Lesser Antilles and Norway/Baltic. We like her as much as Divina.
Dennis