I'm a librarian who loves anime, manga, and reading a wide variety of genres.
J-Novel Club really needs to be more careful with its editing - I caught one bit where commas seemed to have been used in place of periods, a stray "1" at the end of a sentence, and an instance of "is the worse" instead of "is the worst." And then there's the quality of the light novel itself. So many light novel authors have no clue how to do decent story pacing, and Miya Kazuki is unfortunately not an exception to the rule.
I hope the main character matures a bit in later novels. It's easy to forget that Urano is a college grad, because her single-minded pursuit of her personal book-related projects and her tantrums when things don't go her way make her seem much younger. It fits her body - Myne is maybe 6 now - but that doesn't make her POV any easier to deal with.