We loved staying in the windmill hosted by Stella and Yiannis. It was a wonderful and truly unique experience.
Our ferry to Milos came in late at night, but Stella communicated with us leading up to our stay and Yiannis picked us up from the port--which reduced stress and was very much appreciated. Stella showed us around the windmill, describing everything there and offering to provide anything that wasn't. She provided everything we could need--a map, postcards of the windmill, coffee, water, Greek beer, toast, jam, delicious nuts, etc.
The windmill itself was really special. It's even more interesting and beautiful than the pictures show. (Even the historic key is cool!) It's a short walk from the center of Adamas, situated on a hill so there are amazing views of the sea from every window. We enjoyed breakfast and coffee every morning outside with a cute and friendly cat. If you do rent a car (which I recommend to fully explore Milos), there is plenty of private parking right next to the windmill. Every time we left or came back to the windmill, I was reminded of how fortunate we were to stay in such a spectacular place and to have Stella and Yiannis as our hosts.