We stayed in this apartment for the whole month of January - the apartment is bright and has a great atmosphere to it, personal and cosy. We were concerned about it being noisy before we arrived, but even though the streets of Bairro Alto are busy at night time, we slept well and didn't get bothered by it.
Sara is a great host, she even helped getting us an extra table as we had to work during our stay and used the extra room near the kitchen - reccommended if you are staying for a long time like us:)
The wifi is good and the location suberb! Would def reccomend it to other people and if we come back to Lisbon this would be the place to go to!