Nice apartment, good location and a solid value. Carla is also a great communicator! She made us feel welcome and offered good tips on finding a covid test locally, which we needed for our return trip to the States.
Just one thing—I would advise those with small children to consider another apt that is less noisy, as it does face a street and you will want the windows open for the breeze.
Overall we enjoyed the apartment for our stay in Porto.