We really enjoyed Carla's apartment! Her friend Sonia manages it, and Sonia is a very friendly lady. You can very easily walk about one or two streets from Sao Bento train station (or metro stop) to the apartment. The washing machine was helpful to freshen up our clothes, the kitchen is super well equipped (spices and everything!). There is a gluten free cafe and a low priced salon or the first floor of the apartment building, we utilized both. Also an excellent vegetarian restaurant two blocks away. Only thing we would suggest is adding a fan or two for the summer. It's not usually TOO hot in Porto, but some days we were a bit uncomfortable from the heat inside the apartment (there was one small fan in the apartment, but more the type you would set on your desk at work, so not really useful to ventilate the apartment). Overall though, five of five stars! Thanks Carla!