I'd defer to Klaus on this - he knows his game inside out and back to front.
But from my point of view, I wouldn't say he is a killer, at least not yet, and I would say he's something between Adebayor and the great man, Henry, in terms of resembling former Arsenal players.
He's not like little Walcott though, check out his performance and celebration at the Bernabeu to see he has a confidence and cockiness to him that Theo never had:
Bear in mind, he's only 19, or maybe he's just turned 20 there. I don't see him as an elite finisher right now, and I think the stats bear that out, but I think his speed, technique, dribbling, and athleticism are absolutely elite. And he will get strionger as he adds muscle to his 6'4 frame. It's whether that last part, the finishing, suddenly clicks or not. If it does... wow! He'd be a one man wrecking crew.