F*cking loved it. You just can't go wrong. The mystery is always so good, I've never felt dumb while trying work it out. You honestly feel like you're figuring everything out along with Adrien. And he's such a great first person character cos his internal commentary is pretty witty, and his feelings are ones that are easy to relate too.
Not to mention that Adrien/Jake are one of the best m/m romance pairings I've ever read, perfect blend of love and complications.
Josh Lanyon is Awesome.