This is by far one of the most gripping manga's I have read, and with so much going on you simply want to read further to find out what happens next.
I remember watching the anime a few years ago, but I never found myself to go to the manga, until recently, and oh my I truly wish I have. As far as I remember, this series stays true to the anime, and the manga just simply expands on the anime version of this series.
With the aspect of romance, betrayal, prejudice and some elements of adventure, it is certainly worth the read. Especially, if you enjoy supernatural and adventure in one.
The main downfall of this series, I would say is the art itself. I mean I'm not complaining or anything, as I have not seen any previous work of this artist, but I just feel like it was not quite there. Maybe, I will change my view if I see some other works of this artist.
Overall, great work, and certainly worth the trouble, as this is not quite your typical vampire story. Therefore, this is a definite recommendation from me, to those who enjoy reading about supernatural beings.