I’ve ridden Waymo in SF and it has gone great. The cost was cheaper than the cheapest Lyft/Uber, but in a much nicer vehicle. I felt 100% safe the whole time, which is better than I can say about humans who get paid more if they drive faster. My only complaint is cases like where it “wasted” a few minutes because it didn’t want to do an illegal U-turn during the pickup (any human driver would have done it).

The word “reliable” without any units attached isn’t well-defined, so I can’t say whether Waymo meets that bar, but it’s a good customer experience.