Gonçalo is a very welcoming host. He let us in well before the actual check in and had a lot of helpful tips (restaurants, sights, way of transport etc.). The apartment is in a nice neighborhood and perfect to explore Lisbon by foot. You'll find everything you need, even some Portuguese specialities are provided. The bed is cosy, the kitchen very modern and everything was clean and tidy. While the walls are indeed very thin, it wasn't a problem for us at all. Lisbon is a great city! Thank you, Gonçalo, for making our stay so easy and comfortable.