The story was well thought out, there weren't any real plottwists. But the plot was good enough as to not drag the show down. It was servicable, but nothing spectacular.
Then again the show's art was purely sublime in my opinion. From the colorfull and happy feel of the characters and the world, to the badass looking Gatchaman suits and fighting scenes.
The soundtrack was fine, nothing really stood out for me while watching the show. But after having a listen to the OST afterwards it was pretty good.
Now the chracters are the absolute best part of this anime. Although they use quiet some chracter trope stereotypes, they use them quiet well and then you have Hajime. She is just absolutely amazing, from the way she thinks to the atmosphere she puts out. How she interacts with the rest of the characters has a huge impact on the other characters which is really interesting.
All in all the show is rather good overall but it shines in it's chracters and art which it depends on heavily.
