We stayed in Villa Refugio for 3 weeks in April/May with our 3 kids. Given the whole property is fenced, we felt completely safe letting our kids out of the house and do their thing. Even the pool can is behind a door. I almost felt like Pablo Escobar in some of his hacienda :)
Our favorites were the pool, the outdoor kitchen, the sun beds, and fresh lemons straight from the lemon tree.
You will definitely need a car since there's absolutely nothing in the area (we actually liked that). The supermarket is 5 min drive in Llucmajor which is a nice little city that has a nice historic city center with little shops and restaurants/coffees. You will also need the car to take out your trash (3 min drive).
The host was really nice, the checkin/checkout was quick and he even brought us some groceries when we arrived.
We are already thinking about coming back!