The room is very clean and tidy, exactly as represented in the photos. There is a tv, internet, and air-con, which was a huge added value since we were visiting during a heat wave. The mattress is extremely comfortable.
The bathroom is also a good size, clean and has everything we need.
The communication with the host wasn't perfect, though, as I have asked a few questions and never got a response. I had advised the time I would arrive for check-in, but got no information about how this would work so when I arrived in Lisbon, I had to call the host to let him know we would be arriving soon. The host is not very responsive to messages on Airbnb.
Besides that, the apartment is located about 15/17 minutes from the nearest metro station, Arroios. It is an easy walk though it is good to mention.
All in all, it was a good stay and we do recommend it.