The Mardanza house is located next to the center of activity in Santorini. Even though the area is swamped with houses, the excellent arrangement of houses doesn't voids that factor. The view is absolutely amazing. It's super hot in July-August, but the nights are peaceful.
Marinos is a top-notch host. He guided us through our activities in Santorini and was always reachable. You can rely on his opinions of what is good and what is not on the island.
I highly recommend this house for your stay in Santorini!