I had nothing except Elon's PR to go on. Well, I didn't really have any expectations. I don't spend my days thinking "Oh, Tesla Autopilot's such an amazing self-driving function". I've seen plenty of discussions about how limited it is and I'm quite aware that it's far from any sort of self-driving solution. It's not like discussions about it are rare on HN. But still, seeing it is much much much more different from observing discussions about it.