Cláudia was always very kind and friendly, she even texted me everything via whatsapp/text/airbnb to make sure I would get her messages. The appartment is very nice, from 5th floor you can see Lisbon in every detail, even the castle and the river. Everything was in walking distance and Cláudia prepared some nice suggestions to visit and eat (enough for a whole month so you wouldn't get bored!).
She awaited us at the app, showed us around and explained everything. It was very clean, we even found a welcome gift (bottle of wine/some cheese) and she left some cooking essentials for us.
The bathroom is quite new and nice, you will have 2 balconies, a great kitchen, a living room with tv/internet/dining table and couch and a nice bedroom, with a typical queensize portugese bed (very short, maybe 180cm measuring, our feet were outside while asleep). By opening the windows you will have a chilled temperature even though it doesn't have an AC.
Great experience, thanks for everything!