Okay. I haven't watched a single u18 game. They're all on my DVR.
But from old watches? Interesting skill-set for sure, and you're right, being buried could make him a nice sleeper. He's got 1st round tools for sure, even top 15-20 tools. 6'3-6'4 with smooth skating and soft hands? That's valuable.
I don't know if he's still at center, but he's always looked like a projectable wing to me. What I'll say, besides usage, is that he's someone who can improve on consistency. He doesn't always use his size enough, and I wouldn't call him a "cerebral" player necessarily, even if it's not bad. I think playing wing and focusing more on a simple goal scoring game will help him long-term. If he's there at 40 (I don't think he will be), he'd be high on the list. But I haven't seen his u18s or any games in the last few months.