First of all, it is impossible to give this any stars. It is a diary by someone with specific national-socialist views, it is not a 'story' or 'analysis', so giving it any stars is impossible.
It was mostly an interesting read to view the mind of the notorious Joseph Goebbels, especially in 1945. Especially his perspective on Hitler, who he always calls the 'Führer' execpt for one time, it interesting to read. It is clear that he looked up to him and stayed true to their national-socialist ideas.