As a guy who started investing in Tesla Around November 2015, I can say Tesla has been the most exciting company with plenty of frustration.

The Tesla Semi. . . Doesn't even list how much payload it can carry. That's amateur hour right there.
The 4680 cells, both by weight and volume, they are inferior to their 2170 counterparts. I hope they atleast cut costs.
4680 was also suppose to be a "structural battery pack" But then Sandy Munro does a breakdown, and the batteries provide ZERO structural support. So not only does the design suck, but it doesn't even do what it was designed to do.
(My theory is the infinite tab design (they call it tabless, but it's really a continuous tab design.) You get worse performance due to extra space occupied at the top)
Elon's biography admits he faked the FSD video in 2019, his Tesla Neural net computer was not the most powerful out there, admits FSD was no where close to ready in 2019. . . But he lied to raise the stock price and gain capital.
Elon lied about solar tiles for Solar city so shareholders would vote for Solar city aquisition and save him and his brother's investment in Solar city.

I have some legit complaints against Tesla as a company. . . But they also have made me an awesome car to drive and a ton of money in the stock market! Overall my relationship is a love hate relationship. I love their current Model 3/Y products, I love how much I made in the stock market with them, I hate their constant lies and think if the company had gone bankrupt in 2018 Elon Musk would be in jail for fraud.