The location of Carla's apartment is perfect. Ten minute walk from Baixa. Beside all the attractions that I wanted to frequent. On a quiet small street. Self-contained flat. WiFi worked perfectly.
In addition, this was the best "supplied" AirBnB entire apartment I've ever encountered. Tea, coffee, toilet paper. towels all generously supplied in abundance. Even toothpaste!
All in all, highly recommended.