Very hard to rate. Promos he's a 7 or 8, great energy and believability, OK on content/selling a match.
Ring he's... idk. I haven't seen that much of him but it seems like a 5 is generous, he has no actual good solo matches I'm aware of. He's arguably a 2 in the ring.
Charisma he's an 8 or 9, you pay attention when he's on and he's totally believable, I don't think it's a gimmick, I think he's actually a crazy violent psychopath.
Overall I'll say a 6. I'm intrigued by him hurting people when he's not supposed to, and he's good on the mic, but I've never actually wanted to see him wrestle a match, so I can't go higher than a 6.