While at the Launch Festival I thought I give Uber a try.
Round 1: airport
Coming out from the airport there was a long line of Taxi waiting, so I didn't need to try Uber yet. First Taxi in line is a minivan. I ask the driver he takes credit cards and he says of course. Well, often it's not the case. So I jumped in, he had a backseat TV and the rider was great. He was also named Daniel. Arriving at the hotel he accepted credit cards wit Square. Got my receipt per email. Perfect.