I'm not terribly sure why the first reviewer lobbed such a negative assessment at this book. Even more puzzling is his charge that he was "looking for analysis of post-apocalyptic film and literature" and somehow got something else.
Berger uses the idea of apocalypse in order to explore representations of both the imagined end of the world (as found in St. John's Revelation, for example, or the Terminator movies) as well as events which traumatize on a comparable mass scale (the Holocaust, for example). Among the films and texts he analyzes are "Eve's Tattoo," by Emily Prager; _The White Hotel_, by D.M. Thomas, _Beloved_, by Toni Morrison, and the oddly futuristic film _Until the End of the World_. I suppose if one were to define "apocalypse" more narrowly, one might be disappointed by this theoretical approach. I found it illuminating, however. (He writes at some length in the book's first chapter about Americans' longstanding pop-cultural fascination with films like Mad Max and Independence Day, begging a re-examination of why we are drawn so intensely to moments of mass destruction.)
Finally, I didn't find the book especially "jargony," just complex. (Then again, I'm a Ph.D. student in rhetoric, so perhaps Berger's professional vocabulary as an English professor is closer to mine than the other reviewer's.) I've actually cited _After the End_ numerous times in my own work, both published and for class. If you're got a serious academic interest in media, trauma theory, or late twentieth-century American culture, this book definitely belongs on your "to read" list.