Since it seems people are interested. I had one situation which this sort of thing made me a bit uneasy (So one gripe actually). I was sitting back right seat. Waymo was waiting to make an unprotected left turn over two lanes. There was a vehicle waiting to also make an unprotected left in the other direction. Behind it was a truck. Waymo made that turn where I wouldn't have. I thought it through after and it had at least two advantages over a human here. 1. It knew the car situation behind truck well before a driver would have considered it. 2. It's front lidar could see around that truck earlier than a driver could. I still provided feedback that I'd have preferred it to not make that turn even if it was safe to do so. At the end of the day I'm the customer and I want to feel safe at all times not just be safe.
This was the turn - https://www.google.com/maps/@37.7337193,-122.4350752,3a,75y,...