I stayed in this apartment for a week from May 29 to June 5 in 2019. The apartment was exactly as described and perfectly clean. Nuno and Sofia were easy and quick to reach. I would be happy to stay here again.
The location near the Martim Moniz metro stop made it very easy to explore Alfama as well as reach Rossio and the western part of town. Rua Capelão was also quite nice. There was a street festival during my stay, but I didn't find the noise to be that bad in the bedroom. The outdoor beer garden with good, cheap food steps away was worth the noise. I also highly recommend checking out Ze da Mouraria around the corner for lunch if you get the chance.
Do take note of the slanted ceilings in this apartment. I'm about 6 ft, and I found myself hitting my head in the ceiling quite often.