As another user said it, this manga is an emotional rollercoaster. In this series you will find the archetypal romantic comedy characters, but what sets this work apart from others is the author's depth and attention to character development. Being a romantic comedy manga, the obligatory 'falling over; oops I'm top of you' was present in abundance, which is something that I just cannot bring myself to appreciate; its too predictable. I am not a huge fan of the artwork stylistcally, but I must also say that the author's attention to detail in both artwork and character development is remarkable, in comparison to other shounen works in the same genre.
I didn't find this series to be very humorous. There were certainly a few LAWL moments, but they were few and far between. For me, the main character's indecisiveness and emotional confusion were frustrating, and rather hard to believe, but I feel like its a character that young adolescents can relate to.
At some points, it felt like the author was dragging things out to buy more time to develop the story further, but it seems like the author had a clear idea of how [he] wanted to end the series, and the author's focus on that goal allowed me to focus more on the present storyline. I also felt that many of the side characters that were introduced midway through the series seemed superfluous and underdeveloped.
The ending was tragically disappointing, and perhaps there aren't such things as happy endings in reality...but isn't this a shounen work? I suppose I would have appreciated the ending a bit more if this were the first romantic comedy I was exposed to.
So, in conclusion, I'd say this series is worth a read, if you don't mind lengthy reads and endings that don't make you feel fuzzy inside.