Not bad at all, it corresponds with much of my own thought.
A good find of introductory material.
Seriously, it doesn't add much to the knowledge already on the forum. It is in a more accessible form, though. I'm sure that Azred, Dundee, Nick, Marty, and I, as well as a few others, could each write a powergamers guide that would be substantially similar - there's already bits and pieces scattered throughout the forum.
If you have HoW, make sure you scroll down to the HoW part - two potentially costly differences between vanilla IWD and IWD/HoW are the added bard skills and opposition schools for specialist mages. You do NOT want to take a conjurer specialist if you have HoW, nor overlook the bard as a character class.
The section on dual/multi classing is excellent, although the author tends to prefer dual classing at an earlier level than I do. That's probably a reflection of the extra XP available at my preferred higher difficulty levels.