This was the best Airbnb experience I have had. Heidi's kindness, helpfulness and generosity is not that of a businesswoman who wants you to write a good review, it is that of a truly good person with an open heart who is happy to help any way she can. I am happy to have met her and her husband, Sen.
The accommodation itself was very comfortable. The air conditioning works perfectly, which is very important in Hong Kong, and the numerous fans work together to keep the place cool even in very hot weather. There are instructions for all the amenities which are very clear (e.g., how to use the washing machine), and if anything was unclear, Heidi would respond within hours, if not minutes, to our queries.
We stayed as a family, myself, my wife, and our two infant children, and it was a very nice experience for all of us. If you have little ones, be careful to shut the screen door quickly against the mosquitoes, and it's a good idea to bring along repellent as well.
When we arrived we had a lot of luggage with us (we were actually moving to live in Hong Kong). Taxis can't drive all the way to the house, but will drop you off at a nearby restaurant. When Heidi found out we had so much luggage, she sent her helper with a trolley to help us get our things all the way to the house.
The location was also otherwise convenient. If you like to cook, vegetables from the nearby wet market are very high quality and fresh, and just down the street is the town's international butcher, with high quality meat (including halal meat) from many places, such as Brazil and Australia. There are several restaurants, a couple of which are very affordable; don't be put off if you don't see an English menu in the window, usually all you have to do is ask inside and they'll produce one for you.
There is a dog that lives across the wall from you, but he is almost always quiet, and although you can hear some of what goes on in the Stone (we were staying in the Hut), the noise was honestly pretty minimal.
Bikes are available to borrow in the yard (with combination locks, so you can leave them outside a shop or restaurant if you want), and you're only a ten minute walk, or barely five by bike from the ferry, so you can get to Hong Kong island (35 minutes on the fast ferry) very easily.
That's basically the long and short of it. I can't recommend this place enough. Mui Wo is peaceful and the people in general extremely friendly. Enjoy!