Had a wonderful stay at K.Anna's Cave for 4 nights. The villa is tucked away through a short winding path, far enough away from the street noise but only a 5-7 minute walk through a parking lot to get to the main Karterados bus stop.
We had 5 people staying there (even 6 briefly) and the space was big enough to accommodate all of us comfortably. Would recommend for family or a group of close friends though, as there were no doors so noise travelled across all bedrooms.
The whole place was clean with ample supplies for the kitchen, bathroom, etc. We even did a few loads of laundry and could hang them out in the front courtyard to dry quickly.
Semi was extremely responsive and helpful both before and during our stay. She arranged shuttles for us and answered all my questions. Would highly recommend this place!