I own a Tesla, and I chose not to buy FSD because in 2019 when I bought it, it simply didn't work based on what I had read. Earlier this year, when Tesla gave a trial to all Tesla owners, I tried it out and was surprised at how good it was, but it still make bad mistakes, one time even curbing the rear wheel while navigating a curve to the right [0], despite it knowing exactly where the curb was.
The problem is that you still have to babysit it. And if you have the babysit a self-driving feature, then it's entirely useless. It becomes nothing more than a party trick to show off to friends about how neat it is.
Autopilot is great. Love it, especially on road trips. But until FSD is good enough to drive my drunk ass home from a party and even park in my driveway, I'm staying away (and staying sober!).
[0] Here's the curb it hit: https://maps.app.goo.gl/BLeqSywhXHRyf7a39. With how wide that lane is, there's no reason it should have cut it so close that it hit the curb. There wasn't even anybody next to me.