If you like Knaak's writting style and like his characters, you will like this.
A big but, however, a very big one. If you find his obsession with his own lead characters butting into the other Blizzard created characters stories irritating and find his writting style to be of a very amateur standard you'll find this book to be another disappointing line of below standard novels that almost seem to only fill Knaak's own desire to see his own 'book persona' aka Rhonin in everything he writes.
Personally I would only recommend this to Knaak fans and for everyone else to save their cash, instead have a look at the Christie Golden WoW books.