Just caught up with this. What this manga wants to do, it does well. Tayamada is cute, Sasaki isn't too annoying, the mood is set up just right.
But the potential is just limited for this kind of story. Obligatory dozens of chapters of ""slow but steady"" progress, obligatory secondary couple that will get more focus once the main couple gets together or is close to that, obligatory resolving each other's issues, obligatory "big moment" once every ten chapters.
Honestly, safe series like this being the most popular subgenre of manga romance is what discourages other authors from writing more emotional and dramatic stuff. I mean, why bother trying to come up with some complex story when you can just write episodic stuff where character just meet and talk, flirt, blush and joke around for hundreds of chapters, and it will sell like hot cakes?
I commend the author for writing more grounded characters, but essentially this is no different from all the teasing manga we've been getting so much in recent years. And I'm tired of that.