Nice and cozy room with a french balcony. I loved the morning coffee sessions with wide open balcony doors just enjoying the first sunshines of the day.
Big comfortable bed, place for everything, good smell in the room due to plug-in air fresheners.
Nice kitchen and bathroom, which are well-equiped enough and they are cleaned each and every day by the cleaning ladies. High-quality compared to other shared accomodations I've been to so far.
The communication was beyond perfect. I did not just receive the responses in a few minutes but always a very nice and polite one, even with an incredibly detailed list about the apartment and also about recommended places to visit in Lisbon (and how to get there!), which was very useful. The host was even flexible with a little bit late check-in.
The location is also quite good. Very close to everything, downtown is in walking distance too (for me at least, others might rather use the public transportation for this distance).
Two very very tiny disadvantages; there is no common area other than the relatively small kitchen, where the guests could hang out to get to know each other, so there were not much of an interaction or opportunity for it (maybe it is an advantage for someone). And yes, the walls are thin here too, but I've never been to a shared place where I could not hear the others, so it was fine too.
Overall I was really satisfied with everything, this is how an airbnb should be run by everyone. I wish I could have stayed there a little bit longer.