We stayed a little over two weeks in this apartment and this is my final verdict! Wow.
Let me start with the location. The apartment is located right in the center of Lisbon (!) but also at a very quiet area. So you can do shopping during the day, trop everything of at home and go out again for dinner and drinks. The ride with uber or bolt from the aerport to the apartment is affordable and worth it. The apartment it self is very specious and super clean. The kitchen is modern and has all utilities you need. Overall, the apartment is very family friendly. It even has baby seat so the baby sits comfortable at the dinner table. There is no balcony and the windows are facing into a patio, therefore the apartment doesn't get much sunlight. But most of the times we were out during the day and home when it was dark outside anyways. We had some electrical issues but that should be solved by now. The host Pedro was always very friendly and forthcoming. You will receive a welcome message with all relevant instructions for the apartment. At the house there are also Maps and suggestions. The host is very quick in responding and very helpful. He even greeted us personally and showed us around the house.
If you are looking for a beautiful apartment in the middle of the heart of Lisbon, this is the right place for you!
Thank you Pedro for being a great host!