The church that you see on this trip is spectacular and really enhances your appreciation of baroque architecture, I really enjoyed the way they incorporated modern lighting into exhibitions.
However, the trip down the river was a bit long and boring. I think the half a day version of this trip would be better.
Also, they assigned most people to meet them in a really bad neighborhood in Vienna, travelling there was unpleasant.

Amazing! The best thing I did in Vienna. It sounds like it could be cheesy but it wasn't! Performers looked like they had been born to wear wigs and costumes of the Mozart time. They were excellent too. They played all the best known pieces so it was a real crowd pleaser. Highly recommend to anyone. The theater is small so no big deal to buy cheaper tickets.