My wife and I also stayed at Pedro's apartment for a month. We found the location great since it was central to both beach and Centro histórico. Pedro's place was great as a base where I could from work from during the evening and explore the city in the morning and night. It was great having the metro less than a block away where we could also get to the central station or airport, as well as just easily moving around the city.
His apartment is as described with nordic/minimalist style. ACs worked as described so even during the heatwave we stayed cool inside. We were able to essentially live there like it was our place, able to cook and do laundry, etc.
Pedro was also very attentive and fast to respond regarding my any questions.
Overall, a great stay at Pedro's flat.