I was on a Gate 1 Danube cruise last summer, and chose to skip this tour. The main reason was that a fair amount of the time was spent on the bus ride to and from the city, and also at the included lunch, leaving limited time for actually seeing Salzburg. On our trip, we spent a very pleasant day cruising down a scenic part of the river, and touring Passau. Having said that, the people who went on the tour were happy with it. Here is a very unscientific opinion: people who really loved the Sound of Music wanted to see Salzburg more than others. Finally, $385 seems like a lot of money for this!