We had a wonderful time at Frederico's and Joana's place. You cannot beat the location; right in the center of town and right by the metro so you don't have to carry your luggage very far at all. The apartment itself was just as shown in the pictures and very clean and comfortable. What really made the stay great was the communication and hospitality of the hosts. Frederico was always quick to respond to any inquiry and they were very reliable. Joana made check in easy - she was there at the apartment when we arrived to show us around and store our bags until we could officially check in (we had arrived early). She also made some recommendations for places to eat which were really amazing. I would recommend this flat to anyone looking for a place to stay in Lisbon!