First of all, it's not really Lord of the Flies in space. I didn't like that, but I did like this. This is by the director for Code Geass and Planetes. It's more like Planetes than Geass. Animation is mediocre. If you want to watch something for the animation, I suggest Tekkon Kinkreet or 5cm/second instead. I do not suggest watching this for action either. There is little comedy here. Actually, maybe this is a spoiler, but if you're feeling cheerful about something that happened, it's probably so you can be sucker-punched in five seconds. What Infinite Ryvius does have is lots of drama, lots of characters, lots oftalking, lots of plot, and lots of serious. If that's what you like, you will probably like this. I rated it a 10. It's good.