I was sympathetic to Ronan, up until about chapter 10.
Now obviously Luke and Ronan are meant to be your morally ambiguous 'for the greater good' type antagonists, or at least, that's how their actions are framed. Up until chapter 10, I even believed that I might have the rug pulled out from under me and things weren't so black and white as they seemed. Obviously, there's some wider public benefit to the whole 'creatures' thing being kept under wraps, but ultimately it does serve Mayhew's own goals. But Ronan? Whose goal is (apart from Mayhew's whole... deal) Nick's safety and happiness? The man who is violently opposed to the idea of sacrificing a single life?
Yeah, dude, I get there's a whole vampire elder mind-control issue going on, but there's a whole lack of remorse for the things you've done willingly. I don't see anyone really letting that slide any time soon, especially not Nick.
I could be wrong about all of this, of course. There is dialogue about getting Nick and Ronan back together (or at least trying). And there's still plenty of rug left to pull. Happened with the truth about our good Italian doctor. Genuinely did not see that one coming.
Honestly, very impressed with what's been happening so far. The major characters all have solid enough motivations (my 'review' of his character, aka personality, is not my opinion of the character itself), the story is well-paced and picks off loose threads in a way that doesn't feel forced (e.g., how does Nick know about vampires; established early on, partly cleared up in chapter 11). All in all, eagerly awaiting the next chapter!