He will not be Chris Obekpa, which honestly is a good thing.
Obekpa is the definition of a one-dimensional player - he blocks a ton of shots, and literally does nothing else. He's a poor rebounder for a guy his size, and St. John's is literally playing 4-on-5 offensively when he's on the court.
I think people here are going to be surprised at how polished Facey will be next season. He won't be a great scorer by any stretch, but relative to most young big men he has a real good feel on the offensive end. (He's definitely not raw, which a lot of people have labeled him.)