In the couple days leading up to our visit we did not receive a response about if there was a shuttle available to pick us up at the port or not. Once we arrived at the port and called, before almost renting a vehicle, we learned Maria and Anna's father was waiting for us already. The place was run more like a hotel, several rooms in one building but the rooms were nice, comfy bed, a/c and we had the choice between two rooms when we arrived. We did rent an atv for 24 hrs through Anna and her connections which is highly recommended as the Airbnb isn't within a short walking distance to city centres or other places like Oia. You can either take the city bus to the port for departure or pay 10 euro per person for the same shuttle back to the port.