You have to replace the trebles, with one forward hook and swivel (I went with a Gammy 4/0 or 5/0 siwash, can't remember which). The action looks wicked, will probably catch fish, but I haven't given it long enough of a try yet. You need to be careful though, just like a plug the hook can get caught on the body, be sure to rig it right.
I think these are more just an evolution of plugs, cool stuff IMO