Antonella's place is absolutely amazing.
It is located in the center of Castellana Grotte and is actually a whole building, including a living room, bedrooms, bathrooms and a second kitchen with a cool rooftop balcony. We loved every detail of the house and felt at home as many of the finishes were resonating with our own style.
The house had everything we needed, including high speed internet connection for some remote working. (Free) parking is easily available and all major tourist destinations can be reached through a quick car ride.
Regarding Antonella and her husband, I can only say that their attention to detail and hospitality have put a smile on our faces several times during our stay. From the check in, where Giuseppe had already paid a parking ticket for us so we don't have to move the car until the next day, through the amazing local tips, we couldn't have wished for better hosts and would gladly host them if the roles were reversed!