Tania's place is perfectly located in the center of Lisbon, close to all the places you want to see in the city. The neighborhood feels very friendly and there are a lot of nice restaurants and bars just around the corner.
The apartment has everything you need for a comfortable stay and it was very clean, the kitchen was also very nice.
There was only one issue with the noise coming from the top floor, you can hear everything and if you want to sleep in that can be a problem.
Overall great place and high recommendable.