Mariana's place was great value for money. Contrary to what other reviews say concerning the stairs - there is only two small flights of stairs in her apartment building so this should not be an issue for a lot of people. The location is great because it is very central. Mariana and her housemate were easy to reach on whatsapp and they were able to offer little tips about the city. The room and bed are basic but comfortable. This was one of the cheapest outlets available in Lisbon and it provided great bang for buck/value for money. I don't think there's anything that I could complain about :)