I've given this a 7 because I was invested in their romance and the tension was good! That being said, minor spoilers ahead, they reach a lot of big milestones by Volume 5 and I think some of the tension that made it good is gone now (for me.)
My main dislike is that by volume 5 it feels as though the main heroine has lost a bit of her otaku personality, and I'm always sad when that happens in romance mangas. People changing what makes them them for their lovers I mean. It's still there it's just much reduced. If you've read Horimiya it feels like how the main character of that one loses his piercings and long hair and punk aesthetic.
All that being said, this manga is ongoing and there are hints of a secondary love interest that's more of an otaku and fits the heroines original personality better. I think that could be taken somewhere interesting! But also I wouldn't be surprised if he just confesses his love and she simply rejects him.
