The art and music were beautiful, the writing style was fine but... one thing I definitely was not sold on was Chiyo and Kouichirou's father-daughter relationship.
There was a lot of tell-not-show style exposition so the info dumps took me out of the story a bit... I wish the story could've been a bit richer. That said, as soon as Kodokushi came back, the story got a lot better in terms of pacing and writing and it made it seem like the entire VN was just filler because of that.
All in all, good, but could've been a lot better with some more thorough character development.