AnoHana combines two quotes that I like: the first is mystery and the second is romance (but good romance). The story is so good, that i watched it in one day. All characters are good written. The main character is really interesting aswell as the supporting characters. The fact that this anime not have an open ending is really good. The last scene got me really emotional and I cried a little bit. It is really dramatic, especially in the two last episodes where you have a lot of conflicts between the characters.
I recommend it to everyone who likes drama, mystery and romance. And get prepared to cry.