How Succesful was Hitlers Propaganda from 1933-39.

How is Success of Propaganda Gauged? The Nazi propaganda machine is at times impressive, at times unusual, at times terrifying.
"...Everything is propaganda."
The Nazis understood human psychology. It was Goebbels' simple realisation that, for instance in cinematic propaganda, there was a need for the viewer to be entertained. Otherwise, there would be no interest in watching at all. This is simply a single instance of the successfulness of Nazi propaganda. Goebbels realised this and corrected it.
How can success be gauged? Maybe by considering the theories and practices of propaganda s…