Mario was really friendly and helpful. The flat was comfortable and clean. It is fully equipped, which was very convenient. The location is great for walking or taking the train to Sintra! However, if you come by taxi I would recommend telling the taxi driver that this alley is close to the cervejaria Trindade or the Sao Roque church, as this is a very small street, and most drivers don't even know where it is. I had a very bad experience with the taxi driver.He got lost, angry and charged me triple the price it should cost.
Apart from that, the flat is fine for 2 people, it would be too small for more than that.