I stayed at Louisa's lovely place for three months while finishing my legal training. The flat is very conveniently located, close to Wanchai underground station, the tram and numerous bus lines, so getting around the city is super easy. Wanchai is a great district to live in - a good mix of old and new, with a market where you can basically get anything, lots of eateries and cafes around and the Causeway Bay area with all of its retail stores is reachable on foot.
The flat itself is very well designed with lots of storage space and a layout that makes it feel bigger than it actually is, which is a luxury in Hong Kong. Lots of natural light, too. The only downside is the construction site right next to it, where a new building is being erected, which means that between Monday and Saturday, from 7.30 am to late in the evening the noise level is really high. I was usually at work during the week so I thankfully missed a lot of it, but especially on Saturdays it was impossible to stay in or study at home, because of all the hammering and drilling. That said, the flat is usually reasonably quiet especially for the busy Wanchai area, so once the construction work will be done in a few months, noise will not be a problem.
Louisa is a great host and easy to communicate with and is very quick to answer to any issue or question that might occur.
I definitely stay at her place again!