While technically a romantic comedy, a dramady would be more accurate to describe this anime. The art and animation are very high quality.
The central idea of this show is how pervasive escapism (whether believed, as in Chuunibyou, or not, as in acting) can be. The romance between Yuuta and Rikka is the archetype that frames and often drives the show.
Morally, it explores how far one should escape into delusion, deal with one's past, and deal with your feelings. It also explores the social contagion of delusions and the path they take. Satone infects Yuuta who infects Rikka who infects Kumin, Shinka infects Sanae, and it continues on. I also like how "escape real world" becomes "escape imaginary world" becomes "escape preconceptions" - saying it's ok to dream and imagine but also you have to have a tether in reality too.
Ex-Chuuni Yuuta tries to reject imagination and dream to escape embarassment he feels while Rikka pulls him back and continually tries to pull him back into it in her own special way. They balance themselves out, stabilizing them between the imaginary and real world.
Unlike Yuuta, Shinka is in denial about her past and Sanae's constant antagonism forces her to deal with her past. Sanae, in my opinion, also opens up Shinka's heart to love that was closed off when she decided to stop being Morisummer. (I believe they are destined to become lovers.)
The show hits on romantic love (soft hits) between Yuuta and Rikka but also takes on harder familial love and such (harder hits), such as Rikka's father's death and her escapism triggered by it, family unacceptance and understanding, dealing with close idols, one's own past, and such.
One of my favorite parts of the show is how they deal with the romance developing between Yuuta and Rikka. Both of them are drawn by society's views of how a relationship should progress. They decide to buck those norms and love each other regardless of how they show it. In some ways they progressed to marriage before dating. They live together in the second season, and basically do before that given proximity. They hold or touch pinkies, touch noses, hold hands, all at their own pace. They love being around the other and don't feel the need to rush anything or do things they don't want to do. More true love, less stereotypical love in my opinion.
Overall: 5/5 Stars