The book is organized alphabetically by the chinese slang words, which is not useful to me. I can imagine this being useful if you speak mandarin well and are trying to figure what somebody was saying, but for a reasonable new student, this organization killed the book for me.
Each phrase or word is given only a short paragraph of description, and there is almost no other text. It is very dry.
The computer terms at the end are useful since they are sorely missing from every other chinese reference I've seen. The book could be worth it for that.
If you're looking for an introduction to Chinese slang, get Wang's other slang book, Outrageous Chinese, which is excellent.