I went and bought Avatar - Feather & Flesh yesterday. I've listened to it a couple of times now, I think it's a really good album overall. They mix a lot of different styles on the album. It isn't straight out chugga chugga screamo metal, though there are elements of that. Some progressive metal, some melo-death metal, some guitar runs and riffs that remind me of classic metal, all thrown into a concept album.