Sorry for the necro, but I pre-ordered the book ages ago and it;s been sitting on my 'in' pile for ages and over the last couple days I finally sat down and devoured it.
I loved it! But them I'm used to negotiating multi-track stories with flashbacks and whatnot woven in. Seven-thousand pages of Peter F Hamilton has made it so I think it's weird when there's only one plot thread to follow.
The story was dark and twisted and chaotic, which fit the tone nicely. It was brutal and disjointed and not everything got answered to the asker's liking, but there weren't really any loose ends. It was a story about a brutal, disjointed place.
That said, it was super grimdark, chock full of grimdark, wrist-cuttingly grimdark. In short: everything I expect from 40k fiction not involving Commissar Cane or the hijkinks of Deff Skwadron.
And like LtoN, I don;t really care for non-Cain guard books, but this one was as brilliant as it was brutal.
I'd even suggest it to people I know who know very little about 40k as a great intruduction to the setting.
If anyone wants to talk about it I'm up for it.
PS: This has me looking at guard again...can't decide if I want to do tau'd up renegades or come up with some specialty Arkan stuff (not sure how you'd do the knights though...allied marines? Sisters?)