Horimiya is a 4-part OVA that aired from 2012-2018. I remember finishing this only to see it appear on my 'watching' list because they made another episode.
It's always hard for me when there's so much time between episodes. I kinda got lost in the story and feel like I'd be better off reading the manga. But that might be the goal of this OVA anyway: to sell manga.
I'm not a big fan of this art style myself.
The series has a fairly good rating on MAL (7.35) but personally I think a full series would be better, because the manga is popular as well.
Hopefully it gets one in the future š