I just bought this book and almost immediately read through the first 3 chapters. The first 3 chapters are mainly an overview of the entire MSP430 family, how to read datasheets and find the information you want, and a brief history of microcontrollers in general. These first 3 chapters alone are almost invaluable when starting embedded electronics! I have skimmed through the rest of the book (and plan to read through it as soon as my homebrew programming board actually works).
I found one error while reading the first section of the book, and emailed the author who promptly replied, and immediately updated the errata sheet (within about a day). This is a good sign as the author definitely cares about the book, the topic, and that the information he is providing is correct. I will definitely buy the 2nd edition if it is created!
While the book tends to talk about commercially available demo-boards (though is in NO way locked into using them) the companion website is extremely useful. There, you can find the errata sheet, and a pdf with instructions on building your own demo-boards.
I would highly recommend this book as it is up-to-date, extremely well written, and useful to both the beginner and the advanced embedded developer!