I can only echo what other people have already written! Carla's place is clean, quiet and perfectly located for exploring the beautiful city of Porto with the metro but a 5 minute walk (or less if a quick walker!) away. Carla provided us with some local information on places to eat and visit which was very helpful. The rooftop terrace was a nice place to just unwind after all the walking we did and watching the sunset over the city was just lovely!