Jihoon is absolutely wonderful. He is incredibly emotionally fluent - he spends a lot of time talking about feelings and going deep with other people to help them understand their own. Perhaps even more importantly, he is presented as a really involved, very intense listener.
Yet at the same time, he has a core of utter chaos that I found funny and charming as all get out. 

Ari and Jihoon work so well together. The author did a great job of realistically putting them into scenarios where they shared a lot of themselves with each other. 

The book skillfully explored and  delved into heavy issues like mansplaining, racism, diversity in a thoughtful manner and dysfunctional family issues.