Seeing as the series is only halfway through, this review could be premature. However, I've thoroughly enjoyed the six episodes of this series. The characters aren't stiff or cliche. They're dynamic, interesting, and hilarious. The comedy lands every time and, even when it's not trying to be funny, it can still produce a little laughter, always for the right reasons. The narration attributes to the story in a way that isn't monotonous, unnecessary, or irritating. This anime is so brilliantly written in the aspect of its comedic timing, development of characters and relationships, and the entertaining mind games played between Shinomiya and Shirogane. Chika could be construed as the token "stupid, big-boobed extra," but she's only one of those things. She may not have the high intelligence that Shinomiya and Shirogane posses, but she's definitely not a dope. She was able to emotionally manipulate Shinomiya during the word game in order to win. She adds to the story in a positive and entertaining way instead of the usual annoying side character that adds no true value to the story or main characters and is purely to fill the obligatory "best friend" role.
Overall, this anime is incredibly entertaining with golden comedy, well-developed and interesting characters, and a story that leaves you wishing the episodes were longer than thirty minutes. This is truly the most refreshing romance anime I've seen in a while.