Nothing was too much trouble for the very friendly owners. They picked us up from the airport, gave us a car for 5 days and dropped us at the port all for 150 euros. Pool was immaculate and location very good - a short walk from fabulous caldera views and 10 mins walk from one of the best small villages on the island. To see further or get to breaches the car was great, most places within 15 minutes drive (Oia 30 minutes)
Pool bar or restaurant was not open, though the owners brought drinks to you. Payment was in cash (booking.com indicates that payment can be made using Visa or MasterCard) the owner did tell us this at the start of our stay, I forgot and had to be driven to an ATM, no problem for me but worthwhile other travelers being aware.