The answer to this question, of course, depends entirely on your interests and your educational needs.  In the past this course has meant a number of different things to different students.  Many students have gained a general understanding of twentieth century culture that has been useful in both their personal and professional lives.  I have, for example, received a number of postcards from former students, letting me know that the course had enriched their subsequent travels in Europe.  Some have gained an appreciation of books and paintings and buildings and music that has made their lives a little richer.  (In some cases they have passed this on to others, since through this course the culture of the 1920s has had its effect on the development of several local rock bands.)  Some have been able to develop their own understandings of the culture and the society in which they are living and thus are better able to navigate successfully through their environment, and others have benefitted from the opportunity to develop their abilities to express themselves in writing or in speaking.   Some students have related to the revolt against social norms and the radical critiques of modern society that are present in the works many artists and intellectuals from this period, while some have found a moment of wisdom in a manifesto by the surrealists or a story by Gertrude Stein.  And many have no doubt left with nothing but three hours and the fulfillment of a College of Arts and Sciences cultural requirement.  It is, as I noted above, all up to you.