"Great book, great narration, but not for everyone"
On the surface, A Clockwork Orange is a depiction of an apalling young man who commits a variety of violent acts and the government's attempts to redeem him. On a deeper level, it is also a social commentary on youth violence, psychiatry, morality, and other social issues (this is much more apparent in the book than it is in the film). It alternates between being humorous, shocking, and thought-provoking. Overall it is an amazing book, and the narration is phenomenal.
However, this book employs some rather extreme violence, (e.g., the raping of young girls, the beating of an old man) to convey its messages. If you think this might be a problem for you, then you should probably not purchase this audiobook.
Also, the book employs a great deal of slang, called Nadsat. It makes the story a bit difficult to comprehend at first, but you get used to it before long. The narrator also does a wonderful job with it (pausing in all the right places, etc.), and makes it much more comprehensible. I thought it added humor to the story and made it more enjoyable, but other listeners may find it to be overwhelming.