The book is set on an oriental world slightly like that of Tsuranuanni from the Empire trilogy by Raymond E. Feist and Janny Wurts with rival houses vying for more power through alliances and deceit. People appear to be more technologically advanced than in most fantasy novels with rifles and bombs the weopons of choice alongside swords and daggers, however this in no way detracts from the story and fantasy purists should not be put off.
The style of writing is excellent, descriptive but also fast paced and you find yourself completely immersed in this strange and beautiful world. The plot is well thought out with characters responding logically to situations and plenty of suspense thrown into the mix. Put simply this is the type of book which you constantly tell yourself that you'll go to sleep/do the washing up/walk the dog after reading just one more chapter.
My only complaint is that the Weavers are just too evil and despicable, it leaves them too one dimensional and how they come up with their plans for world domination while obviously completely insane is a little puzzling, as is why the noble families put up with their habits. This is a very small complaint about an excellent book and the other two books in the trilogy maintain the high standard set with this opener.
In conclusion this is one of the best fantasy debuts that i have read and i've read alot. If you enjoy fantasy novels by Feist, Martin, Eddings etc then you'll love this book. I've read it three times since its release and enjoyed it every time.