Do we have any proof that Copilot works? I assume it's a pile of rubbish that's currently fooling Youtube hype based programmers and followers. Has any ok but

Do we have any proof that Copilot works? I assume it's a pile of rubbish that's currently fooling Youtube hype based programmers and followers. Has any ok but real programmer used it solid for a week yet and wants to keep going? This is tied to the legal argument. If Copilot works (Which I cannot believe it would) it changes many legal points. Garbage spewing out copyright code is different to something that 'understands' copyright code. And who cares about copyright if it's like all other hype based AI currently, unusable in the real world. All the current HN seems to be bike shedding around legal. Does noone program anymore?