If there was be only one host I could give the tag "superhost" to, it would be to Carlos and Bela.
The apartment is spotlessly clean, has got anything you need, heater and washing machine included, and is more spacious than one would think with a cute suprising layout.
I loved staying in Ajuda, Belem, since it's quiet, very pretty and with local stores and supermarkets, but just a tram ride away from the center, which I find can feel too busy with tourists to actually stay there.
On top of all of this, Carlos and Bela went absolutely out of their way to make my stay great, and even retrieved my luggage when it arrived in Lisbon without me, which took them hours.
I felt safe, like staying with family, and can truly recommend this place.