I personally regretted the lack of character development. Their feelings are not expressed, even if they are the fabric of the novel.
For cons, I was charmed by all this book. The context is really exotic, and the subject rarely dealt with elsewhere. Learning the Maori thinking, morals, and this part of the History of the "colonization" is frankly well made. The descriptions of landscapes are such that we believe it almost.
Overall, it is with great pleasure that I read this novel.