Carla's house was excellent. She arranged for some friends to pick us up at the airport and drop us at the doorstep (against some payment of course) where she awaited us for a tour of the house and also she showed us the neighbourhood by car. Since we were starving, she helped us get some (a lot!!!) food at a local restaurant/take away. The people in the neighbourhood were all very friendly and obliging, and at night it was nice and quiet. We loved the design of the house, very stylish and modern and of course, clean. We were just with 2 persons, but since the house is very open and spacious there would be no problem to host 4.
We traveled around mostly by bus to the beach (20 min) and Porto old town (10 min) but walking to the city centre was also doable.
We would definitely recommend this house!