I’ll go with the low-hanging fruit: Mein Kampf. I’ve read it, cover to cover. As a piece of propaganda, it’s good. As an example of good writing? Absolutely not (though I will admit I have only read it in translation). Oh, and the whole fascist, racist, and generally shitty worldview of the author that he infuses into the text. And the fact that the author is literally Hitler. You 5-star that book? You’re a Nazi. Period. And as a Jewish person, I don’t look too kindly on them.
The last two are interesting to me. I very much enjoyed Ready Player One because it is the ultimate in where VR could go and nerdy shit, and I love a dystopian future story. Not 5 stars, mainly because of the circle jerk energy and how often he uses the word “voluptuous”. I also read Midnight Library and it seemed like a harmless little book, though obviously predictable. I took it as a parable, rather than a story that was going to surprise me.