Callia Retreat is 5 out of 5 stars! Please be aware this is a boutique hotel and not an exclusive apartment. We arrived on an early morning flight and were able to check into our room earlier than expected. Though I never met Panos, the front desk receptionist was outstanding. She was always available to answer questions and went above & beyond to make sure we had a great stay. The hotel is very updated and modern- bonus points for the comfortable beds at the pool! Enjoyed the breakfast every morning. 10 minute walk to the bus stop. Thanks for making Santorini an amazing experience! Would recommend to everyone.