Viking river cruise - Danube Waltz was excellent in every respect.
We have travelled on other lines and Viking is well above the rest in terms of service, food, staterooms and even booking experience. The included shore excursions are great, well organized and very nicely done
We were on the Viking prestige last April - nice ship that visited Budapest, Bratislava, Vienna, Linz, Melk and Passau/. We used Viking air and they provided us with excellent flights as well. Airport transfers were included and made getting on and off the ship so easy.