We stayed at the apartment for four nights with our 1.5 year old daughter. It's on the first floor and the building is very secure so was great. The apartment is walkable to everywhere we needed to go and so was a great base for us. Small supermarket up the street and an indoor market just across the road where we bought fresh fruit everyday. We were able to drop our bags off while the apartment was being cleaned for us which was great. Some nice wine left for us too which was lovely.
The only issue was noise levels. It is quite noisy from the street (cars on cobbled road and people talking) plus the upstairs neighbour moving furniture on tiled floor. So if you are a light sleeper like me it could be an issue. Our daughter slept through everything.
Overall a great stay.