Waymo One passengers reveal what it's really like to ride in Alphabet's self-driving taxis

"One of the things that really surprised us is how nice the cars are inside," Metz said. "At first we were kind of neutral about it being a minivan — but actually, it's completely leather upholstered and surprisingly nice inside."

There's a screen behind the front-seat headrest that's not unlike the Waymo One app. It shows GPS-navigation, destination, and a current mop.

On the ceiling, there's a panel that's similar to being in an airliner, that can get riders a direct connection to Waymo support or tell the car to pull over.

There are also phone chargers, which are a nice touch, the riders said.

Waymo One doesn't have surge pricing. That's huge on nights like New Year's Eve, when rides can get expensive and drivers are in high-demand.

"I paid like 10 or 12 bucks for a ride when everyone else was charging $20 to $30," Beer said.

Even on non-holidays, Waymo fares can be dirt cheap.

"It's four or five miles to our regular grocery store, Trader Joe's," Metz said. "And it's typically like $5.99 to get there."

Metz suspects $4.99 might be the base fare, as he's never had a ride cheaper than that amount.

Beer, the younger of the two drivers we spoke to, says he's convinced the cars are ready to face the road on their own.

"In instances like the left turn, I understand why the safety drivers are there," he said. "But I can tell it's improving and I would personally be comfortable with [no driver.]"

Metz had a more measured response:

"Frankly, I currently appreciate having them in the vehicle," Metz said. "With how new the technology is and how much visibility there is on it, I appreciate the fact that there's still backups in the vehicle."

Other than a cordial "hello" or "goodbye," Waymo safety drivers are there to make sure every ride goes safely and smoothly.

"We are not allowed to [have a conversation with them]," Beer said. "We can pretty much only say 'hey how are you?' and 'have a good night.' There's very little interaction that we actually have with them."

"I know that they're there to do a job so I don't usually bother them," Metz said.

"I can literally count on my hands the number of minutes that the safety driver has been driving," Beer said.

Those situations usually occur in complex situations, like parking lots or unprotected left turns.

"We sat there for about one to two minutes and two cars were sitting there behind us," Beer said. "At a certain point driver just are the safety driver took over and made the turn. It was a little awkward."

Both of the riders we spoke to have seen Waymo vans outside of the current service area — which they suspect could be a precursor to an expansion soon.

"I've seen them outside the geo-fenced area," said Metz. "So it looks like they might be getting ready to expand because I know I saw a couple of them around Arizona State University which is north … and then friends of mine in Gilbert saw them further east of the boundary."

For now, the only limiting factor for the riders we spoke to is how small the current service area is.

"We have two older vehicles," Metz said of his family. "One of the big reasons I've been so enthusiastic about the program is I'd love to get to the point where we could eventually go to a one-vehicle household."

But even with a bike, Phoenix is still largely a car-centric town where access to one is necessary.

"Phoenix is pretty difficult to get around without having some type of access to a car," said Metz.

Beer is particularly excited about a possible expansion

"I have to drive because work is just a mile outside of the network," he said. "I also have some family in the outskirts of Phoenix, but other than those I use [Waymo] for pretty much anything else."

"It's a solid 30 minutes to and from work," Beer said. "And it's stressful driving too, so I'd much rather have someone else do it for me."