I've Never used it, probably won't,
hell we don't have it up here in the sticks,
we just drive our own ****

where ever we need to get/go,
or get a family or friend to drive you...
I have a few friends in the Valley & Bay Area that have,
that travel a lot, to & from the airport, don't want to pay
exorbitant taxi prices or parking long term etc....
So they do Uber, there's a few ridesharing services too...
I asked them what the big deal was all about,
they all pretty much said;
"it was like a taxi ride in someone's backseat
of their personal car, it was no big deal",
swiped card in a "Square" deal on the guys cellphone
IIRC my buddy Robert said they didn't take cash,
at-least the one he was talking about, going from
Rancho Murieta {rural south Sac.}, to Sac. airport,
probably 30+ miles, I didn't ask what it cost...