We had a great stay in Teresa's appartment!
Before our reservation, we had some questions that she answered very friendly and quickly. After our reservation, she also added some useful tips how to get to the appartment from the airport.
When we arrived, the appartment was as nice as it shows on the pictures! Very nicely decorated and very clean. You have about everything to enjoy your stay. She even gave us some maps that we could borrow but most importantly some personal tips concerning the highlights of Lissabon and some very nice breakfast/brunch/lunch/dinner places!
Even during our stay she texted us to arrange the taxi the day of our leaving.
The appartment is perfectly situated: nearby the centre, close to the tram, etc. But it also means that you're nearby the bars so at night you'd better close the windows for the noise (there's airco!).

Conclusion: it was all we needed for a perfect stay!
Thank you Teresa!