As more and more chapters you read, you'll realize this is much more a slice-of-life than story driven, which I unfortunately dislike. SPOILERS ARE AHEAD.
Story: The story is really good, really interesting. You sort of wish they would all come clean to one another, but it makes for a fun read. I can see the child getting all of the stella stars being a majority of the manga. But there's just a bunch of other stuff that happens instead, and the story doesn't really go as fast as I like.
Art: So. Damn. Good. Like really, the author knows how to draw people, and cute kids. All of the art is clean, and well done.
Character: The best aspect of the manga. All of the characters are great, super well written and lovely. They are all good-hearted, and are a total joy to read. You really root for the family to do well.
Overall, this is a great manga. It's relatively new, and drawn well. If I actually liked slice-of-life mangas, I'm sure I'd love it. But since the story kinda slows down to the point I get bored, I've dropped it.