I don't know where to start. I loved this manga and when I came across it and read the summary I didn't hesitate to jump right into it. No regrets and to this day it is my number 1 manga. I enjoyed every chapter of it only slightly frustrated at the parts where it would break away from the main story and focus on Shiharu's friend. (But even then I don't mind, her friend is cool I was just so into the main story I was likely impatient lol).
Anyways, I loved that this manga developed at a good pace. It wasn't to fast nor to slow and made the romance feel natural. Shiharu and Matsunaga are both well done characters who bring just about everything to the story. Drama is minimum, misunderstandings here actually help the story and seem natural not cliched (likely due to Shiharu's personality and age). It is completed and can be read just about anywhere.
The story summary tells you what you need to know about the basic plot.
If you want a good read, a good romance check it out. It deals with family, light family tragedy, life, growing up, and friendship.