Hill is the perfect host, really. She is friendly and pleasant, you'll stay with only warm memories about her. Don't be shy to ask her about anything, she'll help you to find any bus/shop/sight you need for sure.
The Hillian's home is very spacious for Hong Kong. Your room'll be not big, but you can use all sharing areas: big hall and nice balcony.
Lantau island is very beautiful and clean, we didn't regret that we chose this island but not crowded Hong Kong.
We hadn't any problems during staing in Hill's home. Thank you, Hill!