Oh. My. God. I love this series. Maybe it's only my opinion, but this series has everything: characters, intense plot twists, action and comedy. I personally think they kinda messed up the anime adaptation.
Let's talk about the main characters (spoiler freely): creativity gets some extra points. There are about three main characters, but Maka Albarn takes the spotlight, in a good way. They tell every detail from their personality to fears and relationships, but still make enough time for action and epic battles. Almost every character is at least okay. 25 volumes isn't too much, but is just enough for good plot movement and little side stories at the end of the manga (I read the physical copies, so...)

IF YOU DON'T LIKE SPOILERS, STOP HERE!
So, I just had to clear my mind about the difference between the manga and the anime. I watched the whole anime just to see DTK to turn into an evil character for a few chapters, but in the anime, it didn't happen! I was so disappointed and almost ended that there. No, actually I watched it to the end. The manga's final battle was also so much more epic. So please, read this manga!