It was inevitable for me to get a little excited to start this series. The hostile post-apocalyptic scenario, the presentation of the premise, its aesthetics and the mystery surrounding it generated expectations just during the first 10 minutes of episode one, expectations that wouldn't be (by far) reached by Chrome Shelled Regios during the rest of the show, as the development of the real plot was quickly replaced for non-contributory, mostly-boring side stories with a coarse harem inbetween.
The turn-off caused by that was comparable to that of our simpleton Layfon who is more accompanied by an insipid crew of females than by revelations about the world he lives in and serious battles, thanks to him being disproportionately powerful because of the simple fact he's the main character. So you better don't only forget about watching plot progress, but also about watching the protagonists (or anyone else) growing nor making something destacable with the advancement of the chapters. At least the artwork is proper.
The bases of the series are very contundent and the first episodes are really compelling, but the immature and meaningless way in which the rest of the story is dealt makes you think 'meh, this is just one more anime', and even among the average there're better things to watch. 4/10.