Sofia's apartment is perfect for a short stay on Mykonos, even in the offseason. You can see the ocean from the very spacious Balcony and you have 3 beaches within walking distance. Sofia was an excellent host who responded to all my questions and concerns within minutes and helped me out when necessary although she was not on the island.
Just beware that in the off-season this part of the island is kind of "dead" with no shops/restaurants open - you definitely need a car! There are cheap ones to hire directly at the airport (which is a 9min. drive away). And there is a lot of construction work (and noise) around this area in November which you should also have in mind.
Overall, 100% recommendable for those who want to enjoy the autumn sun and peace on Mykonos in Winter!