M.S. Swiss Pearl, river cruise liner - (Hotel ship)
And a pearl indeed.
A bit dated, but renovated in 2006 and 2012 and beautiful inside.
All cabins facing outside, no balconies though.
The ship has a hardworking crew (while you are having your breakfast in the spacious dining room, the crew is cleaning your cabin) and the rooms are spotless.
Another advantage is that the ship has a low silhouette, no trouble passing bridges, not even when the water has reached a high level.
The other way around, when there is a low water level?
No problem either, she has a shallow draught. (1.3 mtr)
The upperdeck is full length open, you can jog there.
Dresscode onboard is casual, unless you want to show off, but then you will have to wait until the captains dinner.
And by the way, more then excellent cuisine.