All other reviews here are spot on. Maria's place is lovely and as per the pictures.
We were met on arrival by Maria's lovely mother who showed us around the apartment as well as provided some restaurant and NYE recommendations.
The apartment has everything you need for a short stay in Lisbon and we found the location to be fantastic. Walking distance to everywhere we wanted to go and close to a small supermarket at the bottom of the road which was very convenient.
You can hear the upstairs neighbours a bit but that can't be helped - we were out exploring most of the time anyway so wasn't too much of a bother.
The bedroom is located at the back of the apartment, away from the street front which is great for an area known for it's night life!
We'd have no hesitation recommending Maria's apartment to future guests, loved it!