He's absolutely brilliant, but overly optimistic about a lot of things. This is why everything kind of happens on Elon time. Delivery time frames, feature updates, full self driving, etc. Its not that it won't happen, it may just happen later, or may not be possible with the current situation. Remember him trying to convince everyone that a Tesla would drive itself cross country last year? or that FSD was possible with current gen hardware? There are probably dozens of examples throughout Tesla history.
I fully believe it will go private at 420 or higher. I'm not convinced that non-accredited investors will be able to stay in the company based on what people who know far more than me about it have said.