I ride their cars every week in Chandler. For a joke, they sure have delivered a nice experience.

All snarkiness aside, I really enjoy riding in the cars because the driving strategy is interesting. Waymo routes appear to vastly prefer more right turns over fewer left ones (at a 3-1 ratio, by my estimates) and also is strategic about avoiding routes with large numbers of parked cars and pedestrians, even if the traffic flow is light.