Well, I've no idea about the level of Puerto Rican league, so not gonna comment. But from what I've seen of Matt in CBA, he didn't show any thing that separates him from the rest of the elite SF in Asia.
Yes, hes tall for a SF, and he's a decent three point shooter, but his rebounding isn't that great, and he doesnt hustle as much. Let me tell you, most imports in CBA whos' over 2.05m gets at least 10 rpg.
So from the limited games I've seen of him, he's at most a elite SF in asia, but I doubt he'll make the tournmanet's first team.