This was a great apartment! I stayed for two weeks with my husband and son, plus my sister, her husband, and their daughter (so 4 adults and 2 kids) and the space was just right.
The location is excellent, we could walk to most of the major sites in Paris within 15-20 minutes (we like to walk), but there is also a metro stop right outside if you prefer to take the train. There was also a very nice pedestrian area right around the corner, which made dinner (and pastries!) very easy after a long day of sight-seeing with the kids.
The apartment had everything we needed to use for those two weeks, which was great. And also, my son is under 2 and sleeps in a portable crib - the one provided in the apartment was very nice and in great condition, so he was comfortable in it the whole time.
Would definitely recommend!