This apartment is lovely and looks exactly as shown in the photos. It's nicely appointed and comfortable for 1-4 people. Unfortunately it's very-very noisy.
The Airbnb listing has 'potential' for noise -- this is misleading as it is NOISY -- all day and all night. Due to the tourist pub-crawls the noise from the bars and restaurants are so near the apartment building it was like a having a party in our bedrooms until 4am. The bars in this neighborhood are small so everyone stands outside on the streets drinking, talking and bar-hopping in large groups until the early morning hours. Which is very festive and fun -- but extremely noisy. Perhaps in cooler months when it's not so warm you can close the windows and that may help with the noise level -- but in July it's too warm and stuffy to close the windows. We tried several times at night and during the day but is was too hot. There's also a MAJOR construction project within a few doors down the street. The work starts at 8am with jack-hammering, cement trucks etc. This project will be going on for a long time as the 3 or 4 story building is gutted for a complete renovation. So the only time we could sleep was between 4:00 or 5:00am when the bars closed, and 8:00am before the construction started. We had headaches the whole time we there from the constant loud noise and lack of sleep.
This location is convenient, charming and a very popular neighborhood. If you're visiting Lisbon to party and do pub-crawls this a great spot. Although you may not be able to catch up on your sleep during the day after late nights out until the construction down the street is finished.