We didn't meet Nuno, but the communication was great. The apartment is exactly as in the pictures. The balcony is wide and catches a lot of sun since there is no building in front. Its location is at the top end of Mouraria, the old Moorish quarter, and right next to "Caracól da Graça", a set of stairs that lead straight to "Miradouro Sophia de Mello Breyner Andresen" a beautiful spot with great views over Lisbon.
The only downsides are:
—The parking. there are only 4 spots in front of the building and these are usually occupied;
—The building walls are paper thin (probably like most old buildings in Lisbon). This makes it very cold in winter (the apartment has two electric heaters at disposal which can help in two divisions), but the biggest problem with the walls being so thin is the noise from the neighbours and passersby — which can be pretty annoying if you are a light sleeper or are travelling with small children.