The hosts that we've met - Frederico and Santiago - were very friendly and responsive to whatever request or question we had. Check-in went super well, although we arrived later than expected due to a cancelled flight, so it was great that it went so smoothly after a stressful journey. The flat is really beautiful and decorated with care. For longer stays more daylight would definitely be nice (there's just one window were daylight gets in). However, this probably is not an issue for shorter stays or people who spend most of their time in BA outside. The location is very central in downtown, with a lot of traffic during the week and a small park nearby. Every other corner of the city can be easily reached from here, the nature reserve is just 20 min. walking distance, so great for the spring/summer time!