We were 6 adults and 2 children, ages 3 years and 6 months. The house worked very well for our stay: It is right on the ocean, with magnificent views of the mountains of St-Marten in the distance (they can be seen from the back of the house, infinity pool, and Jacuzzi, all integrated in a lovely and inviting design) ; it has a small beach nearby (usually empty) that provides a perfect introduction to waves and sand castles for small children; it is very nicely laid out, with privacy for each couple yet lots of common spaces, indoor and outdoor; and it is beautifully appointed everywhere. The only two things to keep in mind are (1) the house is not air-conditioned, only the bedrooms and media room are, and (2) there were quite a few mosquitoes at the time we visited, in the morning and evening especially, which required closing doors and windows. Insect repellent helped, as did the breezes from the ocean.
The island is easy to get around, it has beautiful beaches as well as many wonderful restaurants and pastry shops, and its people are very welcoming and friendly.
All in all, a wonderful setting for a family vacation!