This is a great flat for any stay in Lisbon. The location is very convenient, with easy access to Lisbon by foot, metro, train or bus. Restaurants and shops abound. We slept with the windows open, but weren't bothered by the noise of the tourist scene.
The flat itself was very clean and comfortable and Lourenço was an attentive host, offering tips on places to visit, eat and drink.
I strongly recommend it!