Forgive me but I'm not much of a follower of NRL. Is he any good?
Yes, he's a good player. Principally a ball handling loose forward/second row but has been known to play stand off. Not had a great deal of game time this season with Manly and at 32 is probably past his peak but still has plenty of quality.
If Mateo is the one providing cover for the halves, a couple of questions.
Firstly, is he any good in the halves, and apart from his offloading game, what attributes will he bring. Kicking game etc. Having played over 200 NRL games, I would think he is a good player.
Also, at 32, and 17st, is he quicker then Finn. A lot of bigger players tend to be slow on cumbersome.
Only asking, as I don't watch a load of NRL to be honest.
My initial thought would be to play 13, assisting the halves
He played for Tonga against Samoa this year at stand off, so must have an idea what he is doing. I'd still prefer him to be 13 and add to the half backs we have rather than replace them.