theres been an odd lead up to the ending from the manga readers where they were expecting so many things. one being that the anime would have its own original ending that would fix the manga, that didnt happen, and then they thought we'd absolutely hate the ending as much as they did.
didnt really happen. as far as can see, the ending was overall well received.
but about the episode, and i guess the series itself is i thought it was great! some minor things here maybe but when i look back on the ending episode i appreciate it more and honestly get so, not even teary eyed but just really wanna break down and cry cause eren was a great character, and the part where he breaks down for his best friend really shows just how sad this ending is.
he doesnt want to die, he knows hes going to, no has to. hes the author of his own tragic story to make sure his friends can live peacefully. it may not be infinite but he succeeded and had to make him the ultimate evil form the world had to unite against.
but at the end of it all, he doesnt want to die. its so sad.