Good for a vampire theme. I love dark themed anime, it really is the best genre. That being said, vampire themes can be really played out or straight up the same story over & over, to make it sort of boring. The same can be said of shojo.
This particular plot blended together a traditional high school shojo with a vampire story line (think better version of twilight). It was interesting/different enough take that it keeps you engaged and still retained the dark/sexy vibe but in a more innocent way.
Overall I wish it had more action and a little more sinister storyline but it is an enjoyable watch.