I've been using their service for months and it was everything okay. But the last 2 times (last friday and yesterday) I booked a trip and I was waiting for more than 30 minutes, both times. The app said first to wait 3 minutes, alfter 5, after 10... I've almost lost my train. I ended up cancelling the trip and calling a regular taxi both times. I'm installing Cabify. This is a shame.