We went on the Rhine with Viking last year and were very impressed. We were a little disappointed with this trip. The good points were the excellent food , entertainment and above all else the outstanding staff. The trips ashore were all good but the many locks meant that little time was spent cruising in daylight hours and we were doubling back on ourselves on two occasions.
We had a cabin with a French balcony and it was very small with no room to sit although the public sitting areas were plentiful for a boat of this size.
In terms of value for money I think it is expensive for what it is
Very comfortable , excellent shower and very clean. However compact and no room for easy chairs