Myself and my wife stayed at Maria's place for a night and our experience was nothing short of amazing. Maria was an amazing host who had her porter come pick us up from the bus station. The house was a short 2-3 mins walk from there. The house itself was in a great location and all the nice picturesque spots are only a short walk away.
When we forgot to get our bath essentials, Maria had her maid promptly deliver them to our door step. She was an amazing host and I would recommend staying at her place if anyone is visiting the Oia area.