Really nice, quiet, and clean room with an amazing host! Evangelia is super quick to reply to emails at seemingly any hour, and incredibly flexible when it comes to helping with your stay. She coordinated with our car rental agency (Halaris, highly recommended) to setup a dropoff and pickup of our car, drove us to our super early flight on the way out, and even hung our wet bathing suits out to drive for us. Oh, and the breakfast... it's incredible!
Overall we would highly recommend staying at Kadia, but only if you have a car. We did do the walk into Imerovigli after ditching our car, and it was pretty tough (in early September, not even super hot season!). But, when we had the car it was a quiet, peaceful home base—and Evanelia's hospitality makes it extra nice.