"Their (our fallen comrades') lives... Were they meaningless?" -Erwin Smith
Yes, Erwin, their lives were meaningless.
-THIS REVIEW CONTAINS MAJOR SPOILERS-
I will keep this review as short as possible, because it doesn't deserve my time. I just want to scream.
Attack on Titan was a great manga until Isayama experienced a burnout after chapter 123. I wanted to believe he will write a great ending despite the quality of writing decreased in the last arc (Ch. 124-139). And it wasn't a delusional expectation. There were some chapters that are great in the last arc, and he was saying he planned the ending from the start, which was a
believable statement since there were too many foreshadowings in the early chapters. But it turned out that was a lie. Nobody can make me believe this ending was the one Isayama planned from the start. I don't know what happened. Maybe the editors made him rush the story, or he just get bored from AoT and wanted to finish it as soon as possible. Well, the reason is unimportant at this point since one of my favorite mangas get ruined by a trainwreck end game arc, and one of the worst finals in the history.
The Rumbling arc is full of asspulls, shitty writings, and Marvel moments. Eren becomes the absolute evil for saving Paradis and starts rumbling with an amazing plan in his head, or we thought like that because we learn Eren didn't have a plan in the last chapter, he just went with the flow. That's the first hit to Eren's great character in Marley and War for Paradis arcs. And the second hit comes from turning him into an incel. He says he doesn't want Mikasa to be with another man after his death. In that panel I wasn't sure whether it's a serious translation or someone is trolling me. It was a waste of a page since nothing explained in the last chapter. What happened to the hallucigenia monster? What's the point of Rumbling if he didn't have a plan, wouldn't something like he did in Liberio work for making him look like absolute evil? These questions have no answers. And top of that Isayama gave Ymir a shitty Stockholm syndrome and turned her into a "HARDER DADDY" character. Oh, also don't forget the fact Eren killed his own mother (I can't watch/read the "Tell me Reiner, why did my mom had to die?" scene without laughing anymore). He could make Dina eat Berthold, so they would have a Colossal Titan with royal blood, but no. Let's make her eat his mother so he can hate titans even more, which could be done by a random titan instead of Dina. Also, the funniest part in my opinion, Paradis is still at war with other nations after Eren's death. He died and took titan powers from Eldians for nothing. Probably other nations will wipe out Eldia from existence in the next 10 years since everyone still hates them due to Rumbling killed so many families.
If you are okay with creating your head cannon and stick to it, then you can still read the first 123 chapters. It's one of the best stories I've ever read. It starts with some questionable writing because Isayama was busy with dissing to Shounen Jump series since he get rejected by the Shounen Jump. Characters were screaming how they will be hero and then suddenly die. If this isn't a shounen parody, I don't know what it is. But it starts to be good with Female Titan and Clash of Titans arcs. And with these two arc, we slowly but surely starts to learn more about AoT's world. With every new arc, a new info appears. We are trying to reach to truth with the characters, the truth behind the titans is a total mystery and when we learn the truth, everything changes. It was a mind blowing reveal, and we wondered what will be happen next. And we didn't get disappointed in the next arcs. Marley and War for Paradis arcs are full of character developments and politics. They have amazing dialogues, especially chapter 120-122. These chapters are literally peak AoT, and proves Isayama is a great writer. But then, everything falls apart. So, if you came here after watching all seasons of AoT (except for season 4 part 2, if you are reading this after March 2022) just read chapter 117-123, and stick to your head cannon. You can still read it from the start for seeing the differences between anime and manga. There are a lot of differences between them, but the most crucial ones are the differences in Uprising Arc (Season 3 Part 1 in the anime), and Mikasa's whole character. I don't know why but Wit Studio turned Mikasa into a soulless doll who is obsessed with Eren in the anime, but she is more than that in the manga. However, if you don't want to read manga but still read my review (I assume you don't care much about AoT but still watches the anime adaptation), then drop the anime after 4th episode of Season 4 Part 2 and create your own head cannon. Again, I assume they will adapt chapter 117-123 in episode 1-4 of Season 4 Part 2. If they make something different than this, I will update this part of the review.
The final conclusion destroyed all of the good things about previous arcs for me. The deaths of Survey Corps were meaningless. Everyone we knew in the first 90 chapters died for nothing. If I was a Survey Corps member who killed by titans, I would beat Eren in the afterlife.
In the end, Erwin died just for a blonde crybaby can f-word with the murderer of Petra. I hope I can get my vaccine as soon as possible, so I can fly to Japan and shit in Isayama's onsen.