Have used airbnb for our trip to HK and US trips. Very nice experience with the locals and visitors. For my HK trip, the owner rent out his 2 rooms to other visitors so happen to make new friends as well.

Yes. I always been using Agoda. Trivago is very active with their promotion. Worth to try

Do we have to buy insurance for maids?

Yes. We also use Mamy Poko. So far so good

Is there any good school in the west? i’m living in CCK.