Well, this is...weird.
As many people have mentioned before, we can divide this manga in two parts: the first one before the timeskip and the second one after the timeskip, starting this one after chapter 26. Many people can think: "but hey, a timeskip usually does that, look One Piece etc" Yes, but in this case there's no only difference in content but also in its vision of life, almost a complete throw. But why?

As I previously said in my anime review of Usagi Drop (which adapt this first part of manga, excluding few scenes) these episodes are completely beautiful, with a magnificent slow pacing for an slice of life anime and a great story about family, sacrifice, kindness and responsability in its simple and realistic way. Daikichi is the perfect example of sacrifice and maturity, helping Rin with her insecurities like the best father in existence. But remember, he's not her father, Daikichi must remain as Daikichi. And here is where this manga gets weird. (spoilers onwards, go to the very end if you have not read it)

We have a timeskip. 10 years have passed. The narrative perspective goes now to Rin and we get a deeper character with more and more insecurities and how she face them. Well, it is done pretty well, being the Kouki arc a pretty solid arc, focusing in their relationship then and before, but the heartwarming slice of life is totally gone.
Slowly, Rin is starting to change her feelings for Daikichi, and we are getting into a confusing territory. Later in the manga, a Deus Ex Machina situation change the relationship between these two and Daikichi finally accepts her feelings.

This is weird as fuck.
This is pretty close to parental incest. Even if they are not blood related, these two had a father/daughter relationship for the last 10 years and now she's in love with him. Slowly, yes, in a natural way, yes, they explain you how, yes, but it just...doesn't work. It is true that is not THAT creepy or disturbing, you can even understand her feelings, but if you look back to the first 26 episodes, something does not fit.
In addition, the end of the manga is...abrupt. That's the word. You don't have any time to empathize with this new situation.
The volumen 10-extra is kinda good - Good side stories to know better some characters and oh god the little Rin- but its end is also abrupt.

Talking about the art, i have any problems with it, same as the anime. Cute and nice to see.

Overall, i enyoyed this manga, but i could've done it much more. If you have seen thie anime and you are in love with this world go and read this, it's still a good read, but not as good as the anime or the first manga caps.