I read that the apartment is in the 4th floor however when it comes to reality it is way worse, even if you have only a backpack, hiking up and down the 4th floor will not make you enjoy your stay in beautiful Lisbon.
Silvia was great as a host either in the check-in or check-out she always responses and with a lot of helpful advice.
It is mentioned that there is an AC and 2 bathrooms but in reality all rooms don’t have AC only in the one in the roof which has no beds and with regards to the bathrooms there is only one bathroom + a sink in the roof.