We were a group of 7 people staying in the apartment of Catarina. Communication with our host was very fast and easy. She responded very quickly and had arranged for her brother in law to let us in and give us the keys. The rooms were big and clean. 2 for 2 people and 1 room for 4. We did not spend too much time in the apartment but it was perfect for a short stay in Porto. I would definitely recommend Catarina as a host.