We had a great stay at Audrey's place. The space was small, like any apartment in Hong Kong, but it was cozy and contained everything we needed. We enjoyed the city views, especially from the kitchen. If you're a taller person be aware that the bed is in a nook, so your feet may touch the wall.
Walking to the apartment does require climbing some stairs in the neighborhood but it was close to the metro - about a 10 minute walk. There are some nice restaurants and a cool little market nearby. Across the street there's a public park with basketball courts.
Audrey sent lots of useful information ahead of time, and Audrey's husband Jonas was helpful and responsive during our stay.
Overall I'd say the place is a solid choice for a stay in Hong Kong. It's not fancy but it's comfortable and secure.