You book this place for the location. We had 3 dreamlike nights staying here, waking up to the sound of the sea outside of the window and just hanging out in the crystal clear water.
The only downside I'd say to the apartment was that it was quite lacking in amenities. Nothing for making coffee and not really the proper kit to make any kind of food. Which forced us to eat out for most of our meals. Also the bed was not the most comfy.
But the guys from Milos Accomodations were super helpful, they sorted out with a car as soon as we got on the island and gave a bunch of tips for where to go.
This place is all about the location, if you want somewhere remote, quiet and looking over the sea.