Really enjoyed our brief time in Castle Hill at Amy's house. The village is interesting and there seems to be a lot of new construction happening. House is well equipped for two couples, though could sleep many more people if necessary. There was an extra room with a larger bed which we didn't use, and there is a room with some bunks and extra smaller beds.
Fire place was great to have on chilly nights, which definitely kept the house warm. Plus the hot tub was a great extra as well. We missed seeing the stars due to clouds, though have seen in other reviews that it is a great spot for that as well.
Our main purpose for coming to Castle Hill was to explore the Arthur's Pass area. We visited in March, so the weather was temperate still, though can definitely see the advantage for the village during the winter ski season.
There isn't a grill at the property, though we managed by using the pans provided and their oven.
Overall a really nice stay. Recommended!