If you read this really fast like 4 to 5 volumes within 1 to 2 hours and you like straight-forward manga, then this title might be for you.
Otherwise, it's a bit "empty" and rather predictable.
Furthermore, Yoh is so quiet, it's almost like he's a mute and Haruna spends so much time talking, it gets a tad annoying. In reality, such couples do exist but on paper, do you really want to read about this? Thus, this somehow gives me the feeling that Haruna is more of a person who loves the sound of her own voice than someone who truly enjoys entertaining the others around her or even a person who values the company of others. In the end, although bits and pieces of her characters were interesting like her upbeat personality and determination to persevere, she came out as a little flat and one-dimensional because of Yoh's behaviour towards her and how too much of the conversation centered around her.
Furthermore it was a bit entertaining to read about Yoh detecting Haruna's thoughts but it got old very fast because the mangaka kept reusing that part of his character. And then, about the other characters: they were too straight-forward also. It's fine if one to two characters are blunt and straight-forward but almost the entire cast is, which deprives the manga of character interaction when the plot itself is so straight-forward.
Lastly, the pages are filled with quite a bit of "near-empty" space and scenes which drag for too many pages.
Anyways, if I wanted to read or experience a one-sided monologue, then I'd have written up my script or started talking to myself everyday.