Interesting moments but something wasn't right...
Usually, in life when a man and a woman are always arguing, sharing innermost thoughts and feelings, supporting each other and care for the other loves exists. Even the chemistry between Sakura and Rintaro is amazing. But...

STORY - A 39 year old woman who wants to have kids and get marry wants a relationship. And 2 guys appear. One is driven by a disturbed woman, his sister, who desires Rintaro. The one is Rintaro who loves her for ages but don't know that (I wonder how this Japanese man deals with love...).
And that's it.
Sakura has 2 great and interesting friends and their story is good
In the end, everybody has an happy ending except Rintaro who has an awful future ahead...
Even Shima ends up with that man...
How can a woman that was afraid of a relationship, had a divorce that hurts her chooses a man randomly? Does that make any sense? Is randomness the best way to find a partner?

ACTING - I think almost everyone did a great job.

MUSIC - didn't catch my attention. So...

REWATCH VALUE - it has funny moments, good side stories and a great, healthy and mature sismance. But the ending I didn't like it. Even if she could stay with any one of them, I think the chemistry was way better between the unlucky friend Rintaro than BMX pro Hiroto.
Where did go the Sakura that apologize on her knees?
Sakura's best friend Shima said to her that it doesn't matter how a relationship starts and that's why Rintaro fly to New York alone...
Maybe Hiroto saying sweet things to Sakura while having sex with Momo is a way of loving her...
Well, why Sakura was mad when Rintaro was placed in New York? Why did they act like that, supporting one another for so long and...
I think the drama lead me to think that both were in love without knowing or wanted to acknowledge that. But, in the end, Rintaro remains alone.
The J dramas are much more tough and realistic than K dramas for what I have watched so far. But I think this has lots of strange developments...

OVERALL

I don't care about age gaps but I find interesting the lack of experience of Sakura and the way that the 3 friends talked openly about that.
And I am happy if a guy that has a friends with benefits or something like that is payed by his sister to date another woman and falls in love... Hummmmm...