I only have the demo, but I like the controls of SSB4 on 3DS. It's not as good as GCN controller control, but that controller was pretty much the best controller any console I've played has had, so whatever. L for grab, R for shield is nice and effective, and for me felt fairly intuitive although I know for others it wasn't. It's tough to do tilt attacks, but that's always been the case really.