I had to finish the series, for the sake of the ending. The entire trilogy was getting on my nerves, but I kept reading because I couldn't live with a pure conscience without knowing how everything ended. All in all, it was an alright ending, pretty average, somewhat satisfying, but I absolutely and utterly refuse to give In the Age of Love and Chocolate more than three stars, and that's because there's one thing that REALLY, REALLY, messed the entire book up for me: a little character named Yuji Ono.
Yuji was introduced in the first book, and was actually one of the more bearable and interesting characters. And, plus, I haven't come across a YA crime novel with a mysterious Japanese mafia heir in it. His presence in the series grew as it went on, an Yuji's relationship with Anya develops—like when he proposed to her in Mexico during Because it is My Blood and even earlier in the novel, accidentally kissed her, which was fanservice epitomized.
By the look of things, it seemed Gabrielle Zevin was setting up a bona-fide intermafia romance, and when I caught a whiff of Yuji Ono's name in this book, I was ecstatic. And when Yuji and Anya get married (for business) and the not-so-subtle passage where Yuji mentions he would in fact sleep with Anya, I was frantic with the thought that Anya might actually do us a favor and move on from Win, despite the fact that Yuji's character had been poisoned and was slated to up and die at any moment.
I thought that maybe Gabrielle Zevin would spare us fans and have Yuji miraculously recover so we could have our sweet cliché romance moment, but it didn't work out that way. Yuji dies, basically wasted away, and the thing that pissed me off wasn't that Yuji died, it was the way he was treated by Anya.
Anya is portrayed as a formidable, touch teenager when runs a mafia, and I think that the Japan arc was supposed to highlight this in the shadow of Yuji's illness. I think it only made her seem a bit less humane. She professes that she has no platonic feelings towards Yuji whatsoever, and, to add insult to injury, didn't try, even after all he did for the Balanchine family (i.e., save Leo's behind and helped him fake his death, encouraged and supported Anya whenever she needed it).
In the end, he was less of a person in Anya's world and more of a plot device. Maybe, if Yuji had been treated better, not even saved from death, the book could have been a bit better.