We took the long European Sojourn cruise, Amsterdam to Bucharest.
We made a great choice; seeing Europe from the river is fantastic.
Unpack once and let Viking take you to see wonderful ports, sights, ways of life.
Smaller than ocean-liner cabins. Well organized, ample storage. Well appointed & quiet. French balcony (ceiling-to-floor glass door) is a nice feature. Bathroom is roomy with large shower area. I recommend 2nd and 3rd level cabins; we encountered serious noise on 1st level cabin and had to upgrade to 2nd level cabin. 1st level (Riverview) cabin had too much noise from water rushing past ship's hull and deafening noise from propellers of passing ships. Remember that 1st level cabins are at the waterline and the beds are below the waterline; sound travels well (& loud) underwater... especially during the quiet night time hours!