I used in May of this year, so if there are changes, it has been since then.

The driver with the car service I use to take me to the airport gave me an earful about Uber from the driver's side -- and he had an ax to grind so take it with a liberal helping of salt: He said things were great when the Americans were around for the first year or so Uber was in Prague. When the Americans left (he said) it is basically run by Russian mafia. Then again, every bad thing I heard about in Prague was blamed on Russia mafia