It's not a bad book at all, and I've had it, or it's predecessor, permanently at hand for years now. The examples and techniques given are clear and concise, and it has without doubt helped me develop my PL/SQL abilities.
But I have two complaints - firstly, the name implies it complements it's predecessor rather than being a new edition- this strikes me as being less than totally honest, and I would have been a bit annoyed if I hadn't got my copy as a freebie (sorry Amazon!).
Secondly, and more seriously in my opinion, the last two chapters and three appendices are only available on the CD-ROM. The author claims this is due to space constraints - I think that's rubbish - more like cost contraints! There are far bigger manuals out there, and as a lot of the same sort of technical information can be retrieved from the internet for free, why bother having to slot in a cd-rom every time you need to know about large objects, or mess about printing and binding the missing material yourself. I wonder what will happen if the next Harry Potter novel is published in this way?