here is my honest opinon about them :
we were staying for a week at their place, and there were things we was not expecting, some of them the host fault and some not.
if you are looking to stay in santorini more than 2 days, be aware that if you will stay in their place you will probably have a lot of issues around food.
we found it very difficult, because we only have a fridge - without the abillity to eat anything warm or drink unless we have to drive to a resturant. saving food from resturants - almost impossible. no option to heat food, and make coffe or tea (by default at the rooms itself.)
there is a few points that I would like to speak about
1) the shower water flow, which was really bad, jumping between very hot to very cold water, every 1 min.
2) the noise from our neighbors, we were located in a room which is very very close to other people rooms and bathrooms, we could hear everything, including the bathroom noises of other people while trying to sleep (not very pleasent sounds)
3) probably the thing that interrupted to me and my girlfriend the most, is the fact that NO ONE WARNED US about NOT drinking from the tap water - which is dangerous and full of disease, and ruined 1/3 of our trip, because we got sick in the last 2 days because we drink from the tap water - warn the clients!
4) our bathroom lights, was not working properly, made a lot of electricity noises, all the time and eventually the lamp exploaded.
besides that, they was very nice, good communication, the cleaning was good, the location and parking was good.