What a lovely location! Graca is a very nice neighbourhood and very authentic one. You can see many locals and few tourists around! Nice places to eat or have a pastel de nata and a beautiful city view point just 5 min from the apartment. Graca is located quite high in the city but it is totally worth staying there. Very good pubblic transport connaction and the historic tram line n 28 ist just round the corner. Nevertheless the lively neighbourhood Marta's apartment is located in a quiet street! The plus is the lovely balcony and the dining area from where every morning we could admire the sun rising :).
The rooms are not big but I would not expect big rooms in a historic house in Lisbon. The apartment has 2 bathrooms with shower and 1 toilet a big plus to get ready in time and explore the city. The kitchen is very well equipped.