Positives: the apartment was impeccable. Renato sent various messages prior to me arriving, giving me tips on how to arrive and avoid some traffic jams.
Negatives:
* Renato's friend Ronaldo wanted to charge electricity separately from airbnb. I offered to pay in cash (but he didn't have change). I told him that they should write this explicitly in their airbnb profile (Ronaldo said it was written there, but I opened the ad and showed him that it was not).
* Ronaldo arrived 30 minutes before the agreed-to check-out time. I told him that we needed the 30 minutes to pack our bags, but he insisted on coming up.
* Ronaldo told my friend that they had prepared the two bedrooms, because they weren't sure if I would sleep with my friend or not. He then asked my friend if we planned on sleeping together in the same bed.