This series was not bad. The unique thing about it is that it shows three generations of main characters. However, that could also be the thing that makes the show suck. Lets say u got so attached to a generations MC then they went and skip to the next gen. U'll feel incredibly frustrated. Frustrated that he's pushed to being a subbed character or removed. Thats what i got when i watch this series.
The story was similar to gundam seed. So if u like seed i think you will like this too. This series will make u cry if you get to attached to certain characters