The best airbnb I've been so far. If this room seems to be interesting to you, do not hesitate for a single second and book it.
The place is easy to find and reach, perfectly well located in my opinion (was my first stay in Lisbon). You can reach the place from the airport by metro.
Room and bed were spotlessly clean, very comfortable bed. There are people who take care of keeping the appartment spotlessly clean every day.
There are three bathrooms and seven bedrooms (as I recall) in the apartment, mine was number 206. There is also a bunch of touristic documentation available in the entrance.
I was welcomed by Celso's brother, I never met Celso himself. The checkin went seamlessly and Celso's brother gave me a useful piece of advise about what to do and see in Lisbon and in the near area (e.g. Sintra), and a map. I could easily communicate by messages with Celso when needed too. On the last day, my flight was in the evening and I was offered to let my baggage in a storage area of the apartment in order not to carry it all day.
I don't see anything even remotly not positive to say about this place.