Eden Rebellion is interesting in that it creates a very alien world and culture, very different to simply humans on another planet or say dog people on a planet, not that there's anything wrong with those, but here it's nice to get a fleshed out and truly alien feeling world to explore, full of it's own lore, Falase clearly having put much thought into it. My real issue is that it is a bit boring, and took me a while to finish, but Fifteen and Ruby are written well and it's an interesting world so makes for a good read at least once.