Nikos parents were some of the warmest people I've ever encountered in my lifetime. They went above and beyond for my wife and I, by picking us up by the port, leaving treats in the apartment, and even supplying medicine and care when I was feeling ill. We truly were treated like we were family. The apartment was spotless and very modern. The location was pretty central, although a car rental is suggested to get around the island. Niko even put together a video highlighting the best of Milos, which I found brilliant.
Do not hesitate and book!