Overall, this is a beautiful work of art. The animation is beautiful to look at and every song fits perfectly and sounds great. The voice actors were also great. Even though the ending to this anime is not exactly fulfilling, the only thing that I would criticize is that there are so many characters that it is hard to keep tract of them all. The characterization is amazing, however. You love, for the most part, every character, even the vampires. If you want beautiful music and animation, a compelling story that keeps you hooked, likeable characters, and some gore, then this is the perfect anime for you.
Updated review at http://www.bubblews.com/news/2010892-shiki-review