TLDR: If anyone asked me for the definition of rushed, I'd point them to this manga.

After the 1st season of the anime ended I decided to pick up this manga from the beginning. It was great and I couldn't stop reading it until I'd catch up. I remember rating it a 7 here. The first 60 chapters were well written, although the cliffhangers annoyed me a bit but no big deal (the anime was strong on cliffhangers too). Then, around chapter 85 it all went downhill. It has always been a bit rushed but it also started being lazy, badly written, and for some reason, after creating such a bold story, the author decided to take zero risks and gave everyone godlike plot armor. It continued being rushed, the stupid cliffhangers happening EVERY CHAPTER only to be solved in the first panels of the next one. It was especially so in the last 20 chapters. Still, I kept reading it until today when it finally ended... I have no words for the final chapter.

I'll never re-read this manga and even though I enjoyed the first few arcs I don't recommend it to anyone.