I've said this on HN before as well, but I've turned into a full-on Waymo evangelist (Los Angeles user here). Couple of things to add to Jake's comment...
The driving experience itself is on par with the "best" drivers I've ever ridden with (things like stopping at actual stop signs, for instance, and not racing from one traffic light to the next, and being courteous to bikes and pedestrians), not to mention just the peace and tranquility of being in a car solo when you're not having to drive (I know, I know, mass transit is better for countless reasons and this is actually doubling down on human isolation which is probably not great long term). Anyway, I have zero interest in getting into an Uber at this point. I'd wait longer and pay more for a Waymo if given the choice. And I'm fully aware people will, if this works more broadly, lose jobs bc of it. I'm not insensitive to that, but I don't think the genie is going back in the bottle barring catastrophic incidents by Waymo et al that cause regulators to kill self-driving cars altogether. Note that I did witness an incident where on a road with no lane markings the Waymo straddled a left turn "lane" and a straight-travel lane. It's an intersection I transit often and normal drivers have great trouble with and frankly makes me uneasy every time I turn left there as well. The Waymo was definitely perplexed by it.
For those who talk about how Phoenix's roads are straight and wide... This is not true in Los Angeles (nor in SF though SF is more of a compact grid than LA). For those of you unfamiliar, a lot of the streets in LA where Waymo operates today are very narrow, with cars parked on both sides and so there's inadequate room for two cars to go down them without waiting for another car to pass. These same streets have zero lane markings on them. I've experienced this several times in Waymo to date where the car just "gets it," though it's almost too cautious when it needs to get over to let another car pass when there's not enough space for both. And if you read all of that and say "what about the weather?" It's obviously an issue and I fully agree it will delay the rollout "everywhere."
All that said, I cannot wait until I can jump in one of these things, from Waymo or any other company, and safely go up to the mountains or some other road-trip destination. The economics of longer trips, particularly to rural areas, are likely tricky bc of the inability to count on a return fare, but, man, I do think self-driving cars are a radically important technology that will vastly change how we transit and, really, how we live. That is, if they don't fuck up too much en route to getting there.