It took us a day to get used to the walk up the street followed by the stairs in the building and the apartment, but it definitely paid off in the stunning view and the peace and quiet at night. We both slept well during our 4-day stay even with jet lag. The only note of caution, as you can see in the pictures, is that the bathroom is on the lower floor and the bed on the upper floor. At our age we have to use the toilet once or twice at night and I was concerned about the stairs at night, but we did fine.
Henrique got us in a little before the stated check-in time, and always responded almost immediately to the few questions I sent.
The location has many good restaurants of different cuisines to choose from nearby, either walking down Calcada de Santana or down toward Av da Liberdade. It felt like we were in a less touristy neighborhood but could easily walk or take the metro everywhere we wanted to go. It was well worth the effort to get from and to the apartment each day.