Imo he will not be successful as a fullback. He struggles there.
I don't mind him as a winger, and he has a good work rate in his own end. In the current Sharks squad he is well down the line though.
As a centre, decent depth is what he is right now, and he has a top 30 contract so the opportunity is there for him. Future NRL gun is a stretch imho. Future NRL regular is possible, but he hasn't played his way ahead of anyone yet... despite being hyped for the last 5 years across three different clubs as the next big thing. For me, at NSW Cup level he hasn't been any more impressive than Hiroti. They both suck at tackling, but Hiroti is quicker, is better positionally in defence, and is a better passer.