They should have hired the guy from the tribute band as his Bon Scott is right on the money. And is just a god damn embarrassment and I say that as a huge GnR fan back in the day. 5 because this awful and he looks like 3 cheeseburgers away from cardiac arrest.
Saw a better quality clip of some other song and I didn't think it sounded that bad. Hard to tell from this but he still has decent range. That said, a wheelchair-bound Axl Rose singing AC/DC isn't something I'd probably go out of my way to see.