Let's start with the negative. Last year a NRL athlete Charlie Faainga was not. In all seriousness his fitness looked a little lacking for the QRL level. He will have to majorly improve his endurence just to be any chance at cracking NRL.
The positive. He is one of the most dominant destructive ball runners I've seen. A big human, he has good feet, and speed for such a big man. The ability to just toy with the opposition whilst in attack. Think back to T. rex in his 2011 prime, (where did that go). Charlie similarly can make the game appear as if he is playing against under 8's at prop, just sucking in defenders midfield, or walking around them, and his teams points flow out wide.
Can't wait to see how he goes against the big boys.