We are a family with two children (4 & 1) and really enjoyed our stay in Paraiso de los Pinos. We stayed in an apartment with one bedroom at the ground floor, with direct access to the pool from the terrace, which was very convenient. The apartment was modern, comfortable and clean. Breakfast was very good, with sufficient different options, all of which of high quality. Area was very peaceful, completely quiet at night.
Access is not the most convenient, as you need to go through narrow roads where only one car at a time can pass, so if you find someone coming in the opposite direction, you need to find a passing place and may need to maneuver. But hey, isolation comes at a cost, and that's part of the charm of Formentera, isn't it?
Overall, a great place to stay in Formentera.