We stayed at Rodrigo's place for three days. I picked the place because of the location, and the pictures looked fine. There was language barrier, every time when I had a question he replied in Spanish. It was difficult to understand him.
At the day of our arrival I sent an SMS to him that we'll use the Metro, but he failed to mention that all the stations by his place were closed. We had to walk for one hour with two large suitcases to find his place. The place is smaller than it looks in the pictures, and I have to say there is awful sound isolation. You could hear the neighbors talking, when they were watching TV, or you could hear the running water when they used it; they woke us up at 4AM. We never met Rodrigo, his friend gave us the keys. We never got any message from our host once we arrived to verify that everything was alright, and he ignored messages we sent when we had issues.