The fact that this has to do with calligraphy might turn off many; but while the manga is centered about calligraphy by no means "drowns" itself in it nor in it's technicisms and actually touchs many other subjects common to slice of life stories; making this work enjoyable to everyone.
One of the main demerits of this manga is that it "feels lacking" in several areas. But this is by no means that the story is crap, the "lacking" part is enough to keep this story from being a gem, it isn't lacking enough to make the story unpleasent. It can also be said that the manga also suffers from slow pacing.
To me one of the most positive factors of the story is the chemistry between the two main characters the male "almost honor student" Yukari and female judoka Yuki.
Yukari will show you how the world of calligraphy is when you are good, when you are "a genius" and how much you can study, explore and express yourself with it. And he will also show you that no matter how deep you are down the road or how good you are, you can always "go deeper" and you can always "get better" in calligraphy.
Yuki will show you the world of calligraphy from the perspective of being no good at it. While she triumphs in Judo as an undisputed genius that outclasses every tournament she is in regardless of how big it is, in the calligraphy world she will meet several walls and considers "giving up" many times. However Yuki will learn than even if you are no good, even if you have a bad hand writing and even if you don't completely understand calligraphy, is still fun, you can still express your feelings and you can still be part of the group.
How these two characters propel themselves forward is also an important point of the story. Yukari falls in love with Yuki in something like the first 6 panels of the manga, Yuki by her part has a very changing relationship with Yukari and will view him in very different lights during the story; which dispels in her personality developments being one of the things to look forward in the manga.
Considering how deep the world of Calligraphy actually is, this story could actually extend until the characters are already married and have children. Personally I'm looking forward to see what type of relationship there is between Yuki, female Judo Olympic candidate and Yukari, super serious master calligrapher, along with a zillion of situations and misunderstandings in the way.