Esslemont and Erikson are co-creators of the Malazan world, but the main books are written by Erikson while Esslemont's fill in back stories. I think I prefer Erikson's writing style, but Esslemont's books are solid. This one is a bit light on magic and contains a few too many sub-plots for its length. Esslemont's writing is not as weighty as Erikson's, but he also involves a cast of thousands so it can be difficult to keep track of everyone.
There is plenty of the action from the previous books and a good plot.
All in all, I recommend this solid book.