You said it all in the first sentence - smart and doesn't quit.
No, he doesn't have HoF hands and feet, certainly not impressive size - it is all heart and hockey sense. He reminds me of Marchand and that type of player. Players that that find a way to win and make their team better.
He can top out at 5'11 and 185'ish by 25, which is decent size for a wing. By then he will be a 7 year vet and just reaching his prime.
This guy was a steal at 13.
What really impressed me is he fought through the rookie wall. He played a lot of games at the highest level in the world and he got better by the last 2 months.