I have booked a private tour guide Rodrigo Quintella through Viator for a one day tour in Rio few weeks ago. We were waiting at the port terminal for the pick up on the day. After waiting for half an hour, no one show up. We have to call him and find out that his car was broken down. I know he has 2 cars from his website, one is a SUV and another one is a mini bus. We have pre-arranged to book the mini bus for our tour. I really doubt that both of his cars were broken down at the same time.
We only stayed in Rio for one day, and rely on him to give us the tour. We were so disappointed and frustrated to learn that our tour was cancelled. So beware if you want to book the tour with him.