Its not my first time staying at Sofia's place, during my previous visit to Lisbon I stayed at another apartment next door.
This is my really perfect air bnb place in Lisbon.
First, I live that area. Second, both flats are so cool, you could comfortably live there all the year)) You have all you may need: a dishwasher, washing machine, plates, cups, toster, etc. Like all you normally have in your own house.
The area is really quite, which is very important if you stay in Lisbon. Local neighbourhood, no turists, you have all shops, supermarkets, wonderful parks, market Campo de Ourique, and so much more for a comfortable and beautiful stay in Lisbon.
The flat is also really big to compare to what you usually get in Lisbon.
The stairway was not a problem to me, i easilly climbed up with my 3 years old daughter and a stroller) it was ok to me, but might be a little hard for people with health problems.
I liked the previous flat (E) a little more, but it was overbooked at that moment. Anyway this flat is really nice too.
And yes, its perfectly clean.
Id love to come back again to one of the "tram 28" flats))