We had a great stay at Katerina's place. She was very accommodating with the check-in when we arrived very late due to a delayed ferry and there was no issues. The communication was great and she sent really good instructions upfront on how to find her place.
The airbnb is well located - close to the ferry and restaurants and shops. The place is simple, but very clean and had everything we needed. It was a very good base from where we could explore Milos :-)