I wouldn't say he's bad but he's not fantastic either. I relate him to Paul Phoenix in Tekken . Easy access to high damage and conversions relative to some other cast members.Well granted, it's a ladiva match up thing, but still.
edit: Man they need to give Percy SOMETHING.
Percy seems bad.
With orbs, he also controls midrange quite well and as expected with his launching command grab, he's really good at exerting corner pressure. Doesn't really have a tool as broken as the Charlottas of the world though