i haven't tried them but i'm very suspicious
they have teh cheaper trems. that alone is enough to put me off, considering my own personal experience with ibanez' cheaper trems. EDIT: that being said even the prestiges have the edge zero trem now, which is no longer made by gotoh, so it's not like I trust them either.
^ I'm not sure why anyone with any sense would take a premium over a "plain jane" prestige. :?