Epic. Truly epic. I momentarily lost my way once or twice, but I put that down to not reading anything for a few days rather than the book itself.
I really liked the look into Quick Ben, and how he and Kalam came to join Whiskeyjacks company, and how the company came to be known as the Bridgeburners.
The ending (not the epilogue) came as a shock even though I was expecting it. Sad, regardless.
But the epilogue got me nearly jumping for joy;
Deadhouse Gates is currently my favourite out of the three I've read, and Duiker is by far my favourite character, so you can imagine why I was happy.
Talking about Duiker, the link between the two "campaigns" (Chain of Dogs and that against the Pannion Seer) was cleverly done - with Quick Ben talking to the Trygalle Traders. DHG was my first taste of Malazan a few months back, and the sudden appearance of the Traders threw me (at the time I thought Erikson made them up just as an excuse to get the groups out of trouble). After reading DHG after GotM (re-read, this time in the place it should have been), things started to make more sense, but it wasn't until the scene in MoI that things clicked into place nicely.
Overall, a good book. Very dark, with some truly amazing battles.