Honestly, I love most vampire stories, but most of them seemed to be skewed more toward undeserving fan service or just complete disregard any original work about vampires. I'm open, though, to new ideas about strengths, weaknesses, and developing power(s).
When I first started reading, I was impressed and entertained by the artwork and the main male character's personality and style. The rest of the characters seemed like they were pulled out of a textbook for typical manga characters, nothing really special.
The concept for the story is a weak one, but the difference between this and so many other vampire/magic manga is how the mangaka went about using the elements and telling the story. She seemed to realize just how much potential that the characters, coupled with the story concept, gave her. By the end of this manga, I was entranced. I wish that there was more.