Well, I can understand, how some may think this isn't an interesting read, but - If you like 'Slice of Life' stories, then I would recommend this Manga any time.
The storyline is realistic and the characters, too. They are not packed with lots of quirks or unusual sides, their behaviour is like that of most people out there and yet still full of emotions. Sometimes they don't know, how to express themselves or how to face the other one, but that's what I liked. Not every relationship ends well and it can be hard to move on or to let go, as shown in this story.
The drawing style is clean, but not especially remarkable in my eyes. However, sometimes "Keep it simple" also works well for artists and this time I would agree to that, since it matches the atmosphere of the setting.
Last but not least, the included oneshot is a nice way to end the volume and not a bad read, although the plot (Health teacher & student) isn't something new in the genre. This being said, if you don't mind awkward moments and characters, that are not all over the counterpart right away, but have been in a relationship before, then you could give this work a chance. ^^