We loved our stay in Rosa de Alfama! The apartment is small but perfect for a few days' holiday, and it is very very cosy! It has all comforts, good wifi, and it was very clean. I liked the bedroom corner and i found the bed very comfortable. The street is quiet at night, just some occasional noise but no ongoing traffic or things like that. Location is very good, a bit of walking uphill is needed but you can't avoid that in lisbon! And if you prefer public transport, tram is round the corner and metro just 5 minutes away. There are small shops, restaurants and pastry shops all around. Santa Apolonia station has a supermarket and it was very handy for us to catch the train to Porto. I loved the atmosphere in Lisbon and especially in Alfama, so this is a great place to stay and explore the area and the whole city.
Rita was very nice and helpful both in communication before arriving, and in person, and didn't mind answering all the questions, and she helpfully picked us up at the airport and we had a nice chat on the way.
I can certainly recommend this apartment and I would not hesitate to stay again if I go back to Lisbon.