This airbnb is very good, especially in terms of space, location, and communication with the host. The neighborhood has many great restaurants and bars and everything you need to see in Lisbon is within walking distance.
A few drawbacks though are that there was very little hot water in the morning, i.e. not enough for 2 people to successively take a hot shower of a reasonable duration. Moreover, the footsteps of the neighbours above can be heard very clearly. So if there are children in the flat above, or loud neighbours, then you will be woken up by the noise of the footsteps when trying to sleep.