From the get go, Kimi to Boku felt weird. The cast didn't act like normal boys would, but instead they acted very girly. In the very first episode they are even brushing the hair of one of the boys. Men don't do that. It's like they are acting how women, who have no clue, think how men act when they are amongst themselves. So from the start, this felt more like a young girls fantasy than an actual slice-of-life anime, which made it harder for me to follow. But I persevered.
And what I found was a traditional slice-of-life, not about boys or girls, but about archetypes. There is the traditional energetic person, who acts on impulse and gets smacked around for lack of delicacy. Then there is the sweet and delicate flower, the girliest of all girls (ironically still a boy). Then of course the are the cool and silent characters, who attract girls like fire does moths. And lastly, there is the leader type, the class president, who acts as the beacon of logic. Or he should, but there really isn't much need for him as there is hardly any messing about in Kimi to Boku. Even though they fail to become like real people, the cast does manage to become actual characters with their backrounds and emotions.
The main cast however cannot sustain the anime alone. Kimi to Boku would not be anything without the supporting characters. They manage to draw out the interesting plotlines and character developments from the rather boring main cast. And it's all very standard, but at least interesting enough to keep you watching. But there is never any "what is going to happen next" -moments that would actually keep you at the edge of your seat.
Overall, the entire anime was an avarage slice-of-life anime. There is decent character development and hints of romance, but no real drama to back it all up. I can recommend it for fans of the genre, but don't expect anything special.