Nice apartment, simply decorated but it has everything you need. Great location to explore Lisbon. Public transport options nearby (tram 28, which is one of the traditional trams, and many different bus lines). Alfama does have a lot of stairs and steep climbs, but you get beautiful views once you're at the top of the hill (close to the apartment).
The apartment is in an old building (traditional Alfama building), so you do hear a lot of noises from outside or from neighbours (which I didn't really mind, but good to know in advance if you're a light sleeper). The main entrance door to the building is difficult to open, so hopefully the landlord will fix that. The apartment is clean. Communication with Claudio was smooth and he replied quickly to my messages. Carla checked us in and was lovely as well. She gave us info about the history of Lisbon, which was nice. She was also easy to reach and took her time answering any questions we had.
Overall: good value for money, clean, a bit noisy, excellent location, basic decor/furniture, good host.