The high rating is all about the beautiful location. Without the wonderful view it would not attract a high rating.
The house is clean and reasonably functional, even if you allow for the fact that the wardrobe to the main bedroom is a hatstand.
However, I would strongly warn any party of 6 people to THINK CAREFULLY BEFORE BOOKING this accommodation. There are no dining chairs other than four stools at the breakfast bar. The 3rd bedroom is tiny. I can't really see 6 people comfortably seated on the sofas - there is simply not enough room.