We were traveling with a one year old. The apartment is perfect for that. There was a baby bed. Our little one slept in the very quiet bedroom in the back. Nice that there was a bath (for her) and a nice shower (for us). The little patio was perfect. After a day exploring Lisbon we set up a little inflatable pool and she could play there.
In July there is a festival on the street where the apartment is situated. So there is noise. It stops at 00.00 so after that you can sleep. When we wanted to go to bed early we just slept in the back room, if not, we listened to the music and slept in the front.
Francisco was there to meet us and when we found out the coffee machine didn't work he bought a new one the same day. Great!!
There's also a really nice cafe/restaurant underneath the apartment. Also nice for kids.