From all the years I have used Airbnb, this has been the most uncomfortable experience.
The good: the apartment is beautiful, well decorated and with a beautiful view.
The bad: the listing offers a sofa bed, yet because I was going to use it the host charged me 30 euros cash, just because she needed to wash extra linens, very uncomfortable moment and not ok. Then the scariest situation happened: on the 2nd day 2 men came into the apartment without notice with their own key speaking only in Portuguese so I was not able to communicate it was very scary and unsettling since i was with my mom only at that moment, I ended up making them go, the host said: "oh sorry there was a misscomuncation".
There was half a roll of low quality toilet paper(basic amenity in airbnb) when i brought it up the host said : "go buy some if you need more". Which it would be easy if there was supermarkets around and if it was not raining and if i knew my way around the very hilly city right? Well it was not easy , 2 days later she brought some with a very bad attitude.
the apartment is not in Alfama btw but is Graca, wich is quite hilly. the description says a 2 easy flights of stairs. Well, is a flight of stairs to get to apartment entry, plus the apartment is on 3rd floor not 2nd not easy for a older woman with knee issues, 2 extra floors make a biiig difference in a 4 day stay with 6 suitcases. The microwave doesn't work, is not even plugged in and has no where to plug it in near it. Btw the pillows and comforters are stained with yellow stains very disgusting they have covers but t see that is quite nasty to be honest. The tiny view is not worth the price, the inconvenience, the scary situations i would skip this place completely, I am not sure why it has this many good reviews, but save yourself a headache.