I guess the typical thing to focus on, and the reason why this lecture got made into a book half a century after it was held, would be how uncannily Adorno predicted certain developments, how prescient his analysis was, etc. I don't even want to argue against this reading, I just think it would be boring of me to point out the same things. It's partly true that Adorno makes some prescient points, and partly true that it's easy to make anything sound prescient in retrospect, that's why horoscopes are so popular. It's a good little text, Adorno's transcribed spoken word is easier to understand than his written works. It offers aspects of a theory of fascism, listing propaganda tactics. It's not groundbreaking but it's nice.