He's big but he clearly doesn't use his size well enough. His mobility is very good for a big guy, but he still doesn't use his angles well enough or handle pucks in his feet enough. He can also be exposed on goal mouth scrambles.
With all that being said, a goalie coach would look at this kid and lick their lips because he has the thing you can't teach and that's size. He's a monster and with some refinement could go a long way.
I think he's right in there with a lot of the goalies from this draft that should go in the 4-7th round range (with guys like Honzik, Binnington) that are just a tier below guys like Hellberg, Perhonen etc.