Have there been any reviews by independent experts? This reads like a promo piece, in particular I'm not sure why the fluff bits about Musk "being a regular guy" are relevant. Most of the linked sources are either other Fortune puff pieces or Neuralink press releases.
Reviews by independent experts about the quality of this guy's life? I think he can be considered an authority on that subject.
It's possible a lot of the QOL improvements are from the circumstances of getting all that attention, or the hype circle they themselves found themselves in.
I also think people need to be open minded to the possibility Neuralink does offer promising benefits.
I'm just seeing a lot of people strongly for or against, and really I think the reasonable stance here is to remain optimistically pessimistic until further evidence.