Clothilde's place is one of the best places, that we ever stayed in Paris.
It is next to the street with lots of restaurants, cafes. And really awesome bakeries, if you would like to have amazing french breakfast.
The apartment itself is not big but at the same time is not small at all. We were with our kid and could manage him really easy and have a glass of wine, while he sleeps in the evening. In addition, it will take you around 10 min walk to "Les Halles" where you will be able to find everything to entertain your kid.
I would highly recommend you to stay at Clothilde's place