For some reason I assumed this sequel to The Wolf of Wall Street would be about Jordan Belfort's time in prison. In fact, he doesn't go to prison until the very end of this book. The bulk of it details his legal case, with lengthy recaps detailing how he came to be the Wolf in the first place. The lengthy recollections of his earlier life allow for further stories of excess, and also a strong sense of how he slowly develops and matures. There's also some moving writing about his growing relationship with his children, who come to symbolise hope for his (post-criminal) future.
At the end he talks about how reading Tom Wolfe's Bonfire of the Vanities helped him find his writing voice, and you can certainly see the influence – larger-than-life characters are often built up into nicknamed caricatures, from his second wife ("The Duchess") to his Russian girlfriend ("KGB"). Then there's "OCD", "Magnum", "The Witch" and so on.
If you liked the first book, you should find this every bit as enjoyable. He writes so well that he is entertaining and insightful whatever the subject matter.