Whether you'll like this manga or not mainly depends on the following:
If you like those kinds of romances in which the guy that the girl is in love with keeps making fun of her which in turn makes her really angry, but in serious situations the guy is super nice to her - then this is the perfect manga for you. If not, you should probably read something else ;)

Characters: The (three) main characters are very likable + believable. Junichi, the seemingly egocentric but actually very caring guy, Yuuhi, who is torn between her love and hate for him, and Minato, the reliable and hardworking little sister. The side characters stay one-dimensional, but are still likable.

Art: The characters are well designed and drawn with great detail throughout the whole series. The backgrounds get less attention, but since it's mostly just classrooms or a living rooms, I didn't mind. Overall the style is pretty clean, which is a big plus for me.

Story: A heartwarming romance that does an excellent job depicting the characters' thoughts and feelings, making you really care about them. The ending is great!