@Imryse
The story is descriptive, I get it, that may be a turn-off for many, especially since it has no action (no pun intended), but as a story, it holds up. The first of its kind (and probably the last, but who knows?). Also, as of yet, the characters are just what Haru has talked of them, they seem "poorly written" since she still hasn't gotten to know them past the "i'll beat them and get a higher ranking!" bit, but in context, none of their actions come out of nowhere.
Regardless of the setting, Haru is a high-schooler acting as a high-schooler without all modern conveniences. Not everyone can build a nuclear power plant after finding out they're in another world. It's what she chose to do and how she chose to live that sets the story. There'd be different reactions if she chose another way of living. You get little world details every now and then, but the story is a Slice of Life at its core. Nothing big, but nothing bad either, that's why I give it 7.5. It's a subjective ranking I'm giving, at the end of the day.
tl;dr you're taste is shit, my taste is objectively better