Excellent! I bought a print copy at a small convention, but I decided it would be awesome to be able to search it on my laptop as well.
I wasn't disappointed at all!
The PDF is done in layers, letting you turn stuff like the page background on and off (I prefer off, makes it easier to read to me). This is awesome.
The bookmarks are well placed, and there are plenty of them. Navigating the book is a breeze. I have other PDFs that fall down on this point, which is sad seeing as how that's one of the primary things PDFs have going for them.
Overall very satisfied with this PDF.
[5 of 5 Stars!]