This is a convenient and reasonably-priced AirBnb. It is one room with a bathroom - the pictures are accurate. Everything worked well, I had no problems. It is clean. The location is excellent, about halfway between the Marquês de Pombal and Rato metro (subway) stations, which is about a 5-10 minute walk at most. That gives you access to the whole city in a matter of minutes.
There are several grocery stores nearby, as well as restaurants, coffee shops, and bars. The Amoreiras Shopping Center is a short walk away (great view of city from roof).
It was not noisy at night, which is good.
There is a good fan you can use when it is hot in the evening or a night.
The host Manuel met me at checkin and answered messages very quickly.
So, I would recommend to anyone looking for a good basic AirBnb for one or two people in downtown Lisbon, it is good value for the money.