This took me far too long to complete, not because it was boring - far from it - but because I had too much going on at the same time. The book is heavy, though, not so much in terms of length (which is still considerable at ~800 pages) but in terms of how fast one can read it. It is not a light book to pick up as you go along, you certainly need to sit down and think as you go through it.
Overall, I did enjoy the book, but not as much as some of the prior Malazan books (though I did find it better than Book 5).

A more detailed review is available at my blog: strakul.blogspot.com/2012/12/book-review-bonehunters-by-steven.html