I used it every day and it does almost all of my daily driving. If it never improves from where it is now, it will be worth the $6k I paid for it. And yeah, you gotta watch it and pay attention.
Even if Tesla Autopilot was significantly safer than a human driver I know I would still struggle knowing a love one died because the AI in my car decide to make a really stupid (albeit unlikely) decision. Right or wrong, human error is something we've always tolerated in society. If you're using a power tool and injure yourself, so long as there is nothing that can be reasonably done to make that tool safer, it's on you. But if once in a blue moon the tool malfunctions and injures you, that is something we don't tolerate.
It seems Autopilot at the moment exists in this in-between place where the driver assumes full responsibility so all situations are considered human error even if the AI is clearly malfunctioning. The more advanced autopilot gets the more we're going to have to question whether it's reasonable for the driver to expect autopilot to malfunction and take full responsibility for their car's actions.