Unique experience to sleep on a ship.
You have to deal with a shower and toilet outside of your room, but after all it's a ship. Water plenty and hot however, everything is clean and I liked the sleeping experience a lot. Quiet, but it can get cook a bit.
Excellent and very reasonably priced breakfast buffet, bicycle rental on the ship. Call before you book, the staff was very friendly, to say it in German: "rauh aber herzlich".
Clear recommendation if you get the room for a reasonable price and if you don't expect the four seasons it's worth spending one or two nights there.