Not that much, honestly. They've already switched tech stack multiple times. They recently removed radar from new cars, the 'camera only' stack hasn't been tested that much. They also have mostly tested on and built for California roads and weather.

My Tesla once tried to steer me into a guard rail (multiple times) because the setting sun caused a lens flare. You can't tell me that this is well tested technology that will enable level 3. Only after doing that twice, autopilot noticed it and disables autosteer.

The cameras also have condensation and freezing issues, causing them to not work on cold, wet days.

This was a car that was, according to Elon, fully equipped for self driving.

I really enjoyed autosteer, but there's major flaws in the current implementation and I seriously doubt they'll deliver on current hardware. If they don't, I'm really curious about the outcome of the lawsuits.