It's a very nice, well equipped apartment with a good location: walking distance to the park, 1 minute to the bus stop which goes to the downtown (to the railway station and metro to the airport), grocery store at the corner.
The downtown is apprx.15 min. walking distance. 5 minutes walking the first bike rental. The best way to discover the city is renting a bike as the bike roads are excellent in the whole city. I really recommend it.
Marcos is a nice host, quickly replays to the messages. So it's a good decision to stay in his AirBnb. :)