As I seem to be the only person that doesn't like the Warcraft RPG Campaign Setting book, ... here's my 2 (Euro) cents...
First of all, I'm very disappointing on the value for money front. The book itself is 244 pages - with pretty big font and lots of filler. I thought some of the images were OK, but didn't see the need for a 2 page filler between every single chapter. When I compare this to the likes of the Forgotten Realms Campaign Setting or the Kingdoms of Kalamar, the Warcraft book looks somewhat lacking.
The book is very content-lite - so much is apparently detailed in other books being released - none of the cool equipment will arrive until Alliance and Horde. No mass combat rules (which I would have expected in the Core book - given this *is* Warcraft) until Alliance and Horde. No monsters until the Manual of Monsters. At least they included some spells before Magic and Mayhem arrives.
I really feel as though Warcraft Campaign Setting is a deliberate attempt to screw customers. I've no problem with expansions etc to make the most out of a licence deal or an interesting setting so rich it cannot possible be detailed in a single volume, but when the core Campaign Setting is nothing more than a taster of what will be present in other books, I can't but feel ripped off in the value-for-money stakes.
With regards to the actual setting - I didn't really get the flavour of the Warcraft game - again perhaps so much is being delayed to other books. The history and geography overviews were OK, but didn't really grap my attention like say Midnight did (which really has to be setting a bar for other campaign settings to achieve). The campaigning section which really should have been brining Warcraft to life was instead applying generic campaign approachs to the Warcraft world - and the emphasis to me seemed to be how Warcraft can offer these campaign types rather than what Warcraft has to offer. I really would have liked some rules for waging war etc in this section to set the feel of adventures against epic wars that could be run.
My advice would be to try and have a look before you buy - whilst a lot of people on the boards are very happy with it, I don't believe the Warcraft Campaign Setting is not all that it promised to be, all that it could have been, or all that it should have been...