The $3900 is inclusive, covering your room, all meals, drinks, and your companion. What is not covered is any activity outside of the villa. During my stay, we went to the beach every day, went out dancing twice, went for Ice Cream once, and had a meal in a nice restaurant. All of that came to under $150. If you look at the FAQ on their website, they state that "like any fine establishment, tipping is expected, but not enforced". I bought my companion a small gift, and tipped her at the end of my stay.