The past and the present are the two themes that suck you into this book. If you grew up during the dawn of the PC era then much of the nostalgia the book details will appeal. If you enjoyed being part of the technology in 80 and 90's then I'll be you'll enjoy this book even more. If you are however interested in where technology is taking us then I think you'll also find this a great read.
The book explores two future worlds, reality and that encompassed inside a virtual world where characters are not limited by their physical environment. It also details the struggle of the individual against the 'mega' corporation that have also proliferated thanks to technology. In the end it is perhaps a book about the fact that human beings need other human beings for them to exist fully. No matter what the technology, in the end it all probably comes down to desire for us to experience real human to human relationships.
You'll enjoy this book if you enjoy technology (old or new). You'll also enjoy this book if you enjoy a good story and rooting for the underdog. Most of all I think you'll enjoy this book if you enjoy solving puzzles and achieving goals. This should be a book that makes you think about where technology is taking us and the possibilities it provides, both good and bad.
Great read, with real world implications. If you love technology, then you'll love this