The "Devil and her Love Song" is a beautiful story. Although I haven't finished it I am really enjoying the story so far.
The art is beautiful and clean- in my opinion. Especially the main charter Maria.
The charters seem very diverse and interesting. Everyone is very interesting and has there own past.
Although the only thing I can not understand is the intense hatred the teacher has for Maria-I mean come on! really? That teacher is so childish.

The story overall is very interesting and I like how it is a very charter driven story with interesting twist. Everything is slowly reveled to you as you keep reading. The story starts when the main charter Maria comes transfers to the new school. She meets new people but with her sharp tongue easily makes some enemies. The story unfolds from their as Maria is not the type to just sit back and be quiet. (I don't want to ruin the story so I will stop there haha)
I wouldn't recommend this for anyone into action genre- as the story can be kind of slow to people. Although personally loved the story myself and would recommend it in general.

----UPDATE---
*SPOLILERS AHEAD*
I finished the manga and I can say while going threw the manga I had mixed feelings. The part were I felt that manga went downhill was the intro of *Spoilers* Maria's father-who had raped her mother when she was ONLY 14 YEARS OLD! I mean, it was an interesting part but how they introduced him a sympathetic character-COME ON! The only victim is Maria and her mother! The main romance also seemed very lacking-and Maria's charter stared to change. Instead of being the wild, open-minded, strong character she WAS. Then when she and Shin officially becomes an item her personality does a complete 180.
She is always thinking of Shin...her thought can be compressed into these small statement all having to do with Shin. "Oh I hope Shin likes my outfit" "I love Shin!" "I hope Shin and I can sing together again.."
What happened to the independent character from the beginning? Even in the manga there is a scene where a guy from a record company tells her that her singing seems like "She is always singing to one person"...and you that person is *DING DING DING* Shin! Romance is not suppose to cripple a person so much they lose all the personality and fire they had before-she should have ended up with one of the other two guys-I think. Especially Yusuke).

I know for the update I might seem like I am being spiteful but I would have to say it's because I had such high hopes for it (It was beginning one of my favorites-not anymore because of the second half). I did not buy the main romance (ruining a great charter in my opinion) and was a complete let down.
I was still able to enjoy the manga (Just no longer one of my favorites). And what I stated before about it not having a lot of action above remains the same.