We really enjoyed staying at Francisco's place. It's really close to to the city center. Subway station is max 5 minutes walk, so you can get everywhere. The apartment was perfect for us, as we traveled as 3 couples, so every couple had private room, and there is 1 living room where we could spend time together. We felt comfortable and would recommend his place. Even though it was hot outside (32-33 °C) the temperature in the apartment was pleasant. We used just 1 day the air condition in our 4 day stay.
4/5 stars, because the apartment is a bit older, and the kitchen equipment could be little bit richer. But it's acceptable, as we came for sightseeing, and not for cooking :)
For that price I would definitely recommend this place.