Jon and Mariluz were very welcoming and gave great advice regarding things to do on the island. The rental apartment is exactly as described...simple and clean. There is no air conditioning, but you likely wont need it as it gets quite cool at that elevation during the evening. You will hear Coqui frogs during the evening, like crickets, but you get used to them pretty quickly. Actually on cooler nights, when they stopped chirping, my son would wake up because it was too quiet! Scuba divers in particular will appreciate Jon and Mariluz's vast knowledge of Kona's best dive sites. They have traveled all over world too and have some very entertaining stories about diving in Bali and other interesting places. They generously lent us two dive tanks and plenty of weights as well, which saved us some rental fees. Ask them about their favorite Manta Ray shore dive site... we dove there and were surrounded sometimes by as many as 8 Manta rays that practically bump into you!