Wanchai is ultimately the location that offers commercial opportunities, recreational activities and a lot of history. For those who have only a few days in Hong Kong, Wanchai is definitely a spot that you must visit. Here is a list of events in Hong Kong. Events in Hong Kong / Wanchai.
The old pawn shop which has a history of over 100 years is a good place to visit for tea after you have had a good walk around; in it you can suffuse yourself with atmosphere of how things used to be.