Oh dear! What a mistake this series is! To me this is a big step in the wrong direction for the franchise.
Gundam SEED (the original series) had a reasonable amount of characters that we got to know and love, each for their quirks, each struggling in their own ways to overcome their problems and find and fight for what is right. The mecha design was cool, and made you think wow! that is cool, the conflict between Athrun and Kira was emotional and the deaths in the series were meaningful and full of purpose.
SEED Destiny turned that all on its head with a juvenille loud mouthed one dimensional "main" character with a cheap replace-a-gundam mecha that almost seemed to cheat as it had (seemingly) infinite replacement parts that could be sent out immediately. As the series progresses he continues to get more and more obnoxious and it seriously made me wonder if the producers actually thought that this character was likable. Too stupid to be an anti-hero, too obnoxious and stupid to be the hero, what exactly was the character that is Shin Asuka.
SEED Destiny introduced many new characters, ships and mecha, but overall it seemed to be souless, by the end of the series you just wanted Shin to die and that the series would please please end.
They took Athrun, and made him into a confused little boy and Kira and turned him into a ultimate-god-like-will-not-lose character that wont get a scratch on him, oh except of course when Shin Asuka faces him, even then he avoids death and even a scratch. Of course when Kira gets his new mecha, he truely is unstoppable!
One of the most poignant deaths at the end of SEED was that of Mwu La Fllaga and I was horrified that they brought him back somehow from the vacuum of space and having his mecha disintegrated and his helmet smashed (at least you see his smashed helmet at the end of SEED floating in space) gave him amnesia and made him into a temporary bad guy. I know they removed the helmet in the special release of the last episode of SEED, but it makes his sacrifice lose its poignancy and demeans it.
Overall the series felt bloated with characters and it seems much of the same plot devices were used even to the point of the ending scenario (Gasp! Another super-weapon pointed at Earth!! /sarcasm). The animation was on par with the first series and sound track was good, but still didn't match the first series' brilliant score. It left me emotionally detached from the new characters except for my annoyance towards them and hating the writers for messing around with the old characters' personalities and skills (Kira, at one point, slices up Athrun's mecha in one attack, where as in the previous series they were always reasonably matched). The ending was poor with Kira and Athrun remaining spotless in their "shiny" variants of the mecha from the first series and the only reason I continued to watch it week after week was in the desperate hope that some how, some way that the show would improve and be a worthy sequel to Gundam SEED.
This series had great potential to build upon the success of Gundam SEED, its just a shame that they decided to ruin it so much!!moreless