Saw an anime reviewer call it his best anime of the season. Have only watched half of the first episode, couldn't like it. But since a lot of people dig it, and you even seem to have made one of its characters your profile picture, then surely, I'll watch the anime.
I'm watching the dub currently and I'm on episode 8 and LOVING it.
Vampires are really cool to me and I tend to like vampire related animes so this really caught my attention quickly.
The story is good so far, pretty much its very similar to Attack on Titan with how the story initially unfolds.
1.Both of the main characters go through a very tragic experience at the beginning of the anime that makes them hate another species (Eren hates Titans and Yūichirō hates Vampires) and it gets the point where both have a chip on their shoulder and become obsessed with getting revenge on these creatures.
and
2.Both end up joining this team of hunters who just so happen to be against the species they now hate and by doing so increase their skill and power to the point that they are finally able to take them on.
Pretty much if you like one series your definitely going to like the other.